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Measurement: The basis of all scientific work

Updated on December 3, 2014

Objectives:

Upon completion of this lesson, the students should be able to:

  1. develop the skills in making accurate and precise measurement
  2. recognize the equivalents of the prefixes used in the SI units
  3. demonstrate skills in using dimensional analysis in conversion units

Measurement is used in the laboratory to take the temperature of a given substance.
Measurement is used in the laboratory to take the temperature of a given substance.
Measurement is used to take the mass or weight of a given substance.
Measurement is used to take the mass or weight of a given substance.
Measurement is used to get the volume of liquids.
Measurement is used to get the volume of liquids.

What is measurement?

Measurement is the process of finding out how many units there are in something. The basis of all scientific work is measurement. There are various units of measurement depending on what we wish to measure. There are measurements of length, mass, force, volume, time, velocity, density, electric current and many others and these are expressed in different units.

Almost all of us use measurements. The food we eat, the clothes and shoes we wear, the work we do, and many of the games we play involve measurements.

Some of the basic measurements in the chemistry include the following:

How long?

How big?

How heavy?

How hot?

What is scientific notation in measurement?

Scientific notation has the form M x 10n where M is the number between 0 and 10 and n is a positive or negative integer. n is the exponent or power of the number. It expresses the number of times 10 is multiplied by it.

Rules in writing a number in scientific notation:

  1. Retain one digit before the decimal point.
  2. Multiply M by 10 raised to the proper value of n, where n is equal to the number of decimal places the point is moved.
  3. Positive exponent means the decimal point was moved to the left.
  4. Negative exponent means the decimal point was moved to the right.

Example: The mass of the atmosphere is 5 100 000 000 000 000 tons, write it in scientific notation.

5 100 000 000 000 000 tons = 5.1 x 1015 tons

^

Numbers
Significant figures
34.50
3
30.55
4
34.56
5
34.05
4
0.345
4
0.034
2
0.304
3
3.000
4

Significant figures

Significant figures are numbers that are either certain or good estimates of numbers. All numbers greater than zero are significant. A zero, which is part of a measurement, is significant. A zero used just to locate a decimal point is not significant. Only the same number of decimal places as the term with the least number of significant figures. The numbers are rounded off to give the proper number of significant figures.

Rules in rounding off figures

  1. If the figure to be dropped is greater than 5, increase by one the value of the last figure to be retained.
  2. If the figure to be dropped is less than 5, the last figure to be retained should not be changed.
  3. If the number to be dropped is 5, the last figure to be retained is increased by one if it odd, and retained as is, if it is even.

International System of Units (SI Units

The present system of units used is the International System of Units known as the SI Units, which is the revision and extension of the metric system.

SI Base Units

Quantity
Unit
Symbol
Length
meter
m
Mass
kilogram
kg
Time
second
s
Electric Current
ampere
A
Temperature
Kelvin
k
Amount of Substance
mole
mol
Luminous Intensity
candela
cd

Derived Units

Quantity
Unit
Symbol
Volume
cubic meter or liter
m3 or l
Density
kilogram/cubic meter
kg/m3
Speed or Velocity
meter/second
m/s
Concentration
moles/cubic meter
mol/m3
Force
Newton
N (kg m2/s2)
Energy
Joule
J (kg m2/s2)
Power
Watt
W J/s2
Quantity of electricity
Coulomb
coul (As(
Electric potential
Volt
V(W/A)

Examples:

Indicate the SI base units appropriate to express the following:

  1. length of a 100 mile race = kilometer
  2. mass of the horse = kilogram
  3. volume of a swimming pool = cubic meter
  4. speed of a racing car = kilometer per hour
  5. density of metallic gold = grams per cubic centimeter
  6. area of a basketball court = square meters
  7. the maximum temperature at the North pole on April 1, 1913 = Kelvin

Table of Prefixes

When the name of the unit is preceded by a prefix, that decimal multiplier modifies the size of the unit.

Examples:

a. 1um = _____cm

= _____mm

1um x 10-6 m x 1cm = 10-4 cm

1um 10 m

1um x 10-6 m x 1mm = 10-3 mm

1um 10 m

Conversion of Units: Dimensional Analysis

Using the dimensional analysis or factor-label method simplifies the conversion between various units. If units are treated like numbers, they can be multiplied, divide or cancelled. A conversion factor which is written in the form of ratio is used to change the units given in the data to the units asked for in the answer.

given quantity x conversion factor = desired quantity

Example

1. Convert 8.0 inches to cm

Given: 8.0 inches

Conversion factor: 1 inch = 2.54cm

Solution:

8.0 in x 2.54 cm = 20.32 cm

1 inch

2. Convert 15cm to km

Given: 15 cm

Conversion factors:

1m­­­__

102cm

1km­_

103 m

Solution:

15cm x 1m­­­_ x 1km­_ = 15/105 km or

102cm 103 m 15 x 10-5 km


Conversion Chart

Equivalence between units

Length

1 in = 25.40 mm

1 in = 2.54 cm

1 ft = 30.48 cm

1 m = 39.37 in

1 A (Angstrom) = 10 m

Mass

1 oz = 28.35 g

1 lb = 453.6 g

1 kg = 2.2 lb


Volume

1 qt = 0.946 l

1 gal = 3.785 l

Laboratory Measurements:

Laboratory experiments require measurements of length, mass, volume, and temperature. Meter is the unit of length. Kilogram is the unit of mass. Second is the unit of time. Kelvin is the unit of thermodynamic temperature. The natural unit of capacity is based on a standard unit of length. Volume is length cubed (P). The most common unit of volume used in chemistry is the liter. Density is the mass or quantity of matter of a substance contained in one unit of its volume.

Density = mass per unit volume = mass of body/volume of body

Specific gravity (Relative Density) = mass of solid or liquid/mass of an equal volume of water

Temperature

Temperature is a measure of how hot something is. It is usually measured with a thermometer has a scale that gives an amount of hotness a certain number value. There are two common scales of temperature, the Fahrenheit scale and the Celsius scale. Extremely high temperature may be measured with a pyrometer. Aside from showing how hot an object is, temperature is a measure of the kinetic energy (energy of motion) of molecules that make up an object. When energy is added to an object, the additional energy usually increases the kinetic energy of the molecules and the object gets hotter. For example, energy is added to a gas as it is squeezed, to a liquid as it is stirred, and to a solid as it is hammered. A thermometer shows this increase in energy as a rise in temperature.

Formulas used in the inter conversions of the scales:

ºC = 5/9 (ºF – 32)

ºF = 9/5 ºC + 32

ºK = ºC + 273

Examples:

1. The normal body temperature is 98.6 ºF. What is the temperature in degrees Celsius and Kelvin?

Conversion Factors: ºC = 5/9 (ºF – 32)

ºK = ºC + 273

ºC = 5/9 (98.6 – 32) = 5/9 (66.6) = 37.0 ºC

ºK = 37.0 + 273 = 310ºK

2. Convert 30 ºC to ºF.

Conversion Factor: ºF = 9/5 ºC + 32

ºF = 9x30/5 + 32 = 86ºF

Assignment

A. Solve the following:

1. Complete the following:

a. 13g = _______________________ kg

b. 3451 mg = ___________________g

c. 4.18 g = _____________________mg

d. 17.38 km = ___________________cm

2. A 170 cm track and field athlete weighs 49.8 kg. Is she more likely to be a distance runner or a shot putter?

3. Gasoline is sometimes sold by the liters. How many liters are required to fill a 10.0 gallon gas tank?

4. The distance between the centers of two oxygen atoms in an oxygen molecule is 1.21 A. What is this distance in centimeters and inches?

5. Calculate the density of aluminum if 13.8 cm3 has a mass of 37.3 g.

6. What is the mass of the following?

a. 6.00 cm3 of bromide; density = 2.928 g/cm3

b. 1000 ml of octane; density = 0.702 g/cm3

B. Search on the internet a research conducted on chemistry, chemical industries, or new chemical products.

Chemistry Lesson: Significant Digits & Measurements

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    • abegailpuzon profile image

      Abe Puzon 

      5 weeks ago from Bulacan, Philippines

      PUZON, ABEGAIL S. BSMT-1

      Accuracy is the key!! Measurement is a part of everyday life, it is an essential life skill. Measurement provides a standard for every day things and processes. From weight, temperature, length even time is a measurement and it does play a very important role in our lives. Without measurements, world would be the place of complete chaos.

    • Angeladeleon profile image

      Angeladeleon 

      5 weeks ago

      Ma. Roselle Angela S. de Leon BSMT 1 - Measurement is the process of measuring different objects. Knowing how to conduct measurement is an advantage for us because we will do a lot of experiments. As we all know, in everything that we do in labaratory experiments, we will always going to measure. Without this, we will not be able to get an appropriate and correct data and information. If you will not measure everything, it will result to problems. In measuring objects we should always remember that accuracy is very much needed. Correct measurements will lead us to a successful labaratory experiments.

    • Pinky Miranda profile image

      Pinky Miranda 

      5 weeks ago

      Measurement is very essential to our lives. It is not just about computing with calculator but it also deals with how many kilos of rice do you need in a month, how short will you cut your hair, how long is your travel time from home going to your school and the likes. Thus, measurement is also about being accurate and precise and being a Medtech, we also measures the reagents and amount of specimen that we are going to use in performing laboratory test since more or less than the needed reagent or specimen is not accepted because it may affect the result of the test and in order to attain the accuracy of the results we should use the proper tools or equipments, follow the proper unit needed and always be careful.

    • Chloe Bundalian profile image

      Chloe Bundalian 

      5 weeks ago

      BUNDALIAN, CHLOE JANE L. (BSMT 1)

      As a medtech student, we must know the importance of this article to have an exact measurement during lab test and it would be difficult to conduct experiments without the ability to measure.

    • PatriciaMae Sayco profile image

      PatriciaMae Sayco 

      5 weeks ago

      SAYCO, PATRICIA MAE M. BSMT 1. The purpose of measurement in medical technologist is to provide an accurate and precise data during laboratory test. Units are important in measurement to know what exact amount you get and what answer you need while taking test sample. This measurement helps medical technologist to avoid mistake in diagnosing diseases.

    • Nhiza Mae Fajardo profile image

      Nhiza Mae Fajardo 

      5 weeks ago

      FAJARDO, NHIZA MAE A.

      (BSMT-1)

      As a medical technology student, I would like to extend my gratitude first to the author of this article. This is a big help for us, medtech students because accuracy is very important in this field. Having the knowledge about measurement is necessary because "correct measurement is the key to fine workmanship".

    • profile image

      anjelacastro2 

      5 weeks ago

      CASTRO, ANJELA V. (BSMT-1) – Technologies are the cornerstone of many modern techniques for diagnosis and treatment of disease. But such techniques require incredible accuracy. Measurement for health underpins the more reliable and efficient diagnostic and therapeutic techniques. Doctors and medical scientists must be able to rely on their equipment to do their job correctly. Measurement may not be the first thing that springs to mind when you think about medical diagnosis and treatment, but it is an essential part of it. Most modern clinical decisions, from diagnoses, to treatments, are based on advanced pieces of technology which take patient readings. To provide meaningful data on which life-saving decisions are made, these have to be incredibly accurate.

    • profile image

      CONSON, JIMELLE - BSMT 1. 

      5 weeks ago

      Measurement is a common part of our daily lives. I do believe that correct measurement is the key to fine workmanship. Based on the given slides, measurement is a great help in finding accurate and precise results. From the past, present, and even to future years, studying measurement will surely continue. Because indeed, it is one of the greatest tools to get successful results.

    • profile image

      Darah Arthria Cristobal 

      5 weeks ago from San Ildefonso, Bulacan

      CRISTOBAL, DARAH ARTHRIA DC. BSMT 1. Accuracy is very important for medical technologist. We should get the right and exact measurement in every specimen we test. We should carefully measure different chemicals or liquids to avoid wrong results of tests.

    • profile image

      Joyce Nicole Dungo 

      5 weeks ago

      BSMT 1

      Measurement is very much needed in our future profession because it gives us many advantages. Without the ability to measure, it would be difficult for us to conduct a experiment. Measurement is also a essential not just in the field of medicine but also in engineering, manufacturing and other occupations and activities.

    • profile image

      Mary Elaine V. Herrera 

      5 weeks ago

      BSMT

      Measurement is often used in our everyday life. Like cooking with the right amount of ingredients used, measuring the amount of vitamins to be poured for a kid to take, measuring our height and body weight, weighing different objects with scales, and also measuring the amount of gasoline to be taken by our vehicle. Learning and understanding measurements is important for me as a future medical technologist. For us, accuracy is very important. This is why this topic is really relevant to us.

    • Kae Enriquez profile image

      Krichelle kae Calderon Enriquez 

      5 weeks ago from San Miguel, Bulacan, Philippines

      BSMT 1

      Measurement is an assignment of a number to a characteristic of an object. An accurate measurement is the key to success. Measurement is very important in our daily living. Especially in getting the right amount. Even we shop to a wet market, the sellers the sell fresh meats always weight the meats. Thay gave us the right amount for the price that we deal to the seller. Not only to that, but in the future profession of the students, if they are taking up engineering they should have the right measurement. Measurement is everywhere, even though we didn’t give attention but measurement is always there and it can’t live us because that is what we need everyday.

    • profile image

      Kimberly Reforsado 

      5 weeks ago

      Measurement is inarguably one of the most important part, not only in our daily lives but also in our future profession which is to become a medical technologist. In our future job, getting the right measurements of certain substances is very important because it is one of the things that make up our role in the medical field. Thus, this topic is very relevant to us aspiring medtechs because this lesson not just only emphasizes how to get the accurate measurement but also its importance and implications in our future.

    • kathlenecalague profile image

      kathlenecalague 

      5 weeks ago

      CALAGUE KATHLENE JADE BSMT 1

      "Correct measurement is the key to fine workmanship." One must know how to measure a specific substance in order to produce an accurate results. Measurement is a great concept for us to study as a medical technologists. Because in the future, we will be having extreme laboratory experiments. We will also handle and take care of our patients. So in order to do these tasks as meant for our job, we should know the correct measurement of a specific substance.

    • Emman Payuran profile image

      Emman Payuran 

      5 weeks ago

      VILLASENOR EMMANUEL BSMT 1

      Measurements, the most essential the most important aspect in our field Medical Technician because we're giving an amount of medicine to the patient so we need a precise measurement of milligrams we're giving to the patient. And learning measurements with you ma'am has made me love my field.

    • Allen Tuazon BSMT profile image

      Allen Tuazon BSMT 

      5 weeks ago

      Measurement is important in our daily lives because it helps us to make things precise and measurement gives as knowledge that everything should be measure first. In our daily lives we often to use measurement for our daily needs so we can cook food or do anything that needs measurement. As a future Medical Technologist we should be accurate in our work because accuracy is the key for being a medical technologist.

    • Tricia Reyes profile image

      Tricia Anne Reyes BSMT 

      5 weeks ago from Palapala, San Ildefonso Bulacan

      Reyes, Tricia Anne I.

      BSMT

      The things that I've learned in this lesson is so important in my future profession. Medical Technologists work in the laboratory which involve measurements of specimen, fluids and so on. With regards of this lesson, I have realized that measurement is not just a measurement, measurement should be accurate all the time and evidence based in order to have accuracy. Lastly, I also learned that everything has specific measurement.

    • profile image

      KristineCassandra 

      5 weeks ago

      Jota, Kristine Cassandra B.

      BSMT

      Measurement is the process of finding out how many units are there in something and a collection of quantitative or numerical data that describes a property of an object or event. It is the basis of all scientific work. It is made by comparing a quantity with a standard unit (SI). Measurement is important, not only in the field of science, but in everything. We are using it everyday, and everywhere.

    • profile image

      Chan, John Derrick L. BSMT1 

      6 weeks ago

      Measurement is undeniably important in our course since, we are going to deal with different substance having their exact measurement depending on the procedure to be done. Having a knowledge about this, it can help me to attain an accurate result more than being precise because, I have a background in this. Moreover, measurement is actually everywhere and there will be a lot more to face with measurements and we should succeed it because it's step for us to be a registered medical technologist someday.

    • profile image

      ivoryshanesalonga 

      6 months ago

      ivory shane salonga

      bstm 4-1

      In my field which is Tourism management. Measurement is important, why? Bec. In my industry we measure distance of going to one place to another. Even in our everyday life. We use measurements, when i wake up, i measure time, when i drink coffee i measure the milk, coffee, &sugar, when i am traveling to school i measure how long will be the distance of my house to school. Thats why measurements is important in order to get the exact amount that needed.

    • Tedyliza Ramos profile image

      Tedyliza Ramos 

      7 months ago

      RAMOS TEDYLIZA ROSE C.

      BSTM 4

      (TUTORIAL-FRIDAY)

      Measurement, the process of associating numbers with physical quantities and phenomena. Measurement is fundamental to the sciences; to engineering, construction, and other technical fields; and to almost all everyday activities.

    • Jerie Len profile image

      Jerielen Mangahas 

      7 months ago

      Jerie Len S. Mangahas

      BSTM 4

      (FRIDAY-TUTORIAL)

      Measurements play an important role in daily life because they are useful to do basic tasks, such as take a child's temperature with a thermometer, make time estimations, measure out medicine and find weights, areas and volumes of different materials or substances.

    • Salonga Aivho profile image

      Salonga Aivho 

      9 months ago

      Ivory shane salonga

      BSTM 4 (FRI,TUTORIAL)

      In my field which is Tourism management. Measurement is important, why? Bec. In my industry we measure distance of going to one place to another. Even in our everyday life. We use measurements, when i wake up, i measure time, when i drink coffee i measure the milk, coffee, &sugar, when i am traveling to school i measure how long will be the distance of my house to school. Thats why measurements is important in order to get the exact amount that needed.

    • Ronniel Legaspi profile image

      Ronniel Legaspi 

      13 months ago

      RONNIEL AERON R. LEGASPI BSEEC-3

      In the field of engineering it is very important because measurement is an essential part of our everyday life. Everything that we create, design, and build uses weights and measures.

    • profile image

      MJ Melencio 

      13 months ago

      Marc James Melencio

      Tourism

      Measurement provides a standard for every day things and processes. From weight, temperature, length even time is a measurement and it does play a very important role in our lives.

    • profile image

      GONZALES, JAVY PAUL S. BSHM 

      13 months ago

      The quality of service in hotel industry is an important factor of successful business. The existing trend of complete quality management in hotel industry ensures the achievement of competitive advantage of hotel companies and is therefore the subject of contemporary research into service quality in hotel industry. The concept and the conceptual model of service quality is indispensable if we wish to understand the genesis of service quality and potential gaps in quality. The aim of this paper is to show the importance of service quality in hotel industry from both the conceptual standpoint and that of service quality measurement. The paper describes the most common criteria for measuring service quality, namely the model of internal service quality and the SERVQUAL model. The shown results are those of quantitative and qualitative application of such models in hotels.

    • Jasper Sierto profile image

      Jasper Sierto 

      13 months ago

      Sierto Jasper L. BSHM - 3

      Measurement is really important, specially to my course Hospitality Management, like in our food laboratory. We measure all the ingredients to get the right taste of th food that we cook.

    • profile image

      liberty taganile 

      13 months ago

      Liberty T. Canete BSN-1 In nursing, we really need to know or study the measurement for us to know the right amount of medicine that we're givng to the patient. We have to study this kind of topic because we really need to apply this to ourself for us to prevent from causing error or harming a patient by giving a wrong amount of dosage.

    • Teddy Gullem profile image

      Teddy Gullem 

      13 months ago

      Measurements are a matter of importance in nursing especially when handling with medicines. Given a wrong measurements of medicine can cause harm to the patients or worst. This can cause a life and your job.

    • Rene Briane profile image

      Rene Briane 

      13 months ago

      Rene Briane G. Angeles

      BSEEC-III

      Measurement is defined as the act of measuring or the size of something. It is important to us all to know how many units there are in something.

      Everything have their own measures. in engineering measurement is very important we uses a lot of measurements and calculations so we know the height or the width of something.

    • Jolina Gabriel profile image

      Jolina Gabriel 

      13 months ago

      JOLINA GABRIEL

      BSN-1

      Science is all about observing and experimenting we need a way to add relevance to those observations and experiments so we use measurements to collect and express our results....without them we would not be able to make and conclusions about anything! Measurements is a must for a nursing student like me, Just giving a medicine to a patient need's an exact amount. Even in solving a problem in life need an measurement for consequences that we may encounter

    • Camille San Mateo profile image

      Camille San Mateo 

      13 months ago

      San Mateo, Camille C.

      BSN-1

      Measure is the process of finding out how many units there are in something. The basis of all scientific work. Like in taking medicine, if you have an illness you need to take medicine and to get the proper benefit from it you need to measure it properly. And almost of us use measurement, like the food we eat and the work we do.

      In everything we do, measurement always involved.

    • profile image

      Danica Vipinoza 

      13 months ago

      Measurement is very important in Hospitaluty Management. We really need to apply measurement in our life especially when we are cooking because we need to get the right amount and temperature of every ingredients. Thank You Ma'am Godbless

    • profile image

      Christine San Gabriel BSN1 

      13 months ago

      Measurements is the assignment of a number to a characteristic of an object or event .This is very important for us nurses to know the correct/accurate of medicines or anything that requires us to provide.Measurements is a very important element/factor that a nurse need to be keen of.

    • profile image

      @ChristianOgorida BSCEII 

      13 months ago

      Measurement is so hard to understand but for our Instructors Ma'am Liwayway Cruz is easy to understand. Thank you Ma'am Cruz

    • davejshv profile image

      Dave Joshua Villangca 

      13 months ago

      Dave Joshua B. Villangca

      BSN-I

      Baliuag University

      General Chemistry

      T, F 7:30-12:00

      Measurement is a method of finding how much unit there are on something. The right dosage of the medicines that we are giving to our clients are very important because giving the wrong dosage of medicine can lead to body complications and the worst case, it may lead to your client's death. It is also important for us to measure the right time in terms of giving medications. We can also apply measurement when we are getting the temperature, weight, blood pressure, blood sugar, and other datas that we need to record. Therefore, the ability of finding the accurate measurement is very important to us nurses because we are dealing with people's life.

    • Gil Calderon profile image

      Gil Calderon 

      13 months ago

      Gil Joseph R. Calderon BSN - 1 In nursing you need to have basic measurement and calculation skill when dealing with medication for the patient, a simple miscalculation can cause harm or death of the patient. Nurses have to remember the more steps in measurement and calculation, the more possibility of error, be more careful, be more precise and double checking is necessary. Measuring and calculation are the core nursing skill and vital for patient safety.

    • Pauline Toribio profile image

      Pauline Louise Toribio 

      13 months ago from Baliuag, Bulacan

      TORIBIO, PAULINE LOUISE A.

      BSN1 2017

      As the title say "measurement is the basis of all scientific work" , learning measurement skills is an important thing. Basic skills may be learned at home like taking your ingridients and measuring how much you use. Also in washing clothes, how much soap should you use.

      As a nursing student measurement skills is a must. For example, dispensing the right medicine to a patient is so important. Just a simple mistake may harm the patient.

      I therefore conclude that i will learn a lot in this subject and it will be a big help for me in the future.

    • Bianca Bernardo profile image

      Bianca Bernardo 

      13 months ago

      Marucot, Katrina Bianca BSN 1 GEN CHEM 2017

      Measurement is crucial to a nurses life. Without knowing how to properly measure and convert units, it would be difficult for us to do our work. We need to be knowledgeable enough on how to read measurements accurately which will be essential to our careers, such as when we record vitals or prepare medicines for our patients. Without the correct knowledge on converting measurements, this will be crucial to our patients lives.

    • RussellBernardino profile image

      RussellBernardino 

      13 months ago

      The Metric system that you provided is a great reference tool for us to easily convert measurements ma'am. Not only is measurement important in science and the chemical industry but it is also essential in cooking, traveling , taking medications etc. Without correct measurement we can't also expect an accurate data or result in our experiments and in our daily lives.

    • Nikki Villaroman profile image

      Nikki Villaroman 

      17 months ago

      Measurement is an integral part of modern science as well as of engineering, commerce, and daily life. Measurement is often considered a hallmark of the scientific enterprise and a privileged source of knowledge relative to qualitative modes of inquiry. Despite its ubiquity and importance, there is little consensus among philosophers as to how to define measurement, what sorts of things are measurable, or which conditions make measurement possible.

    • mariseperez08 profile image

      mariseperez08 

      17 months ago

      Perez, Nina Marise V.

      BEED-II

      TF-12:30-2:00pm/CAS 105

      In science, a measurement is collection of quantitative or numerical data that describes a property of an object or event. A measurement is made by comparing a quantity with a standard unit. Since this comparison cannot be perfect, measurements inherently include error, which is how much a measured value deviates from the true value. The study of measurement is called metrology.

      There are many measurement systems that have been used throughout history and across the world, but progress has been made since the 18th century in setting an international standard. The modern International System of Units (SI) bases all types of physical measurements on seven base units. You can add either one or two pounds of sugar to water to get sugared water. However, chemicals combine in exact ratios depending on the chemical formula. For example, water consists of H2O and if the amount of hydrogen and oxygen that are reacted are not exact (2 atoms of hydrogen for every atom of oxygen) there will be left over hydrogen or oxygen. Chemists are often required to order just enough chemicals to make a complete batch of product with nothing left over. Of course batches may be huge in an industrial plant or tiny in a lab.

    • Maria Luz Mendoza profile image

      Maria Luz Mendoza 

      17 months ago

      MA. LUZ MENDOZA BEED - II

      In science, a measurement is collection of quantitative or numerical data that describes a property of an object or event. A measurement is made by comparing a quantity with a standard unit. Since this comparison cannot be perfect, measurements inherently include error, which is how much a measured value deviates from the true value. The study of measurement is called metrology. There are many measurement systems that have been used throughout history and across the world, but progress has been made since the 18th century in setting an international standard. Measurement so important because, knowing the units of measurement that correspond with a number can give you so much more information than a digit sitting there by itself. Units can, help to show another person the exact amount you have. Assist in solving a mathematical problem, especially in chemistry, where you can follow the units to get to the answer. Show which measurement system the person is using metric or standard.in addition, measurements play an important role in daily life because they are useful to do basic tasks, such as take a child's temperature with a thermometer, make time estimations, measure out medicine and find weights, areas and volumes of different materials or substances. For examples, people use measurements in simple home task like cooking where one may need to use a weighing scale or read the temperature of an oven when baking foods.

    • Elize Bantang 14 profile image

      Elize Bantang 14 

      17 months ago

      Eliza B. Merle BEEd-ll

      Measurement is the process of finding out how many units there are in something. Measurement is the basis of all scientific work. There are some various units of measurement depending on what we want to measure. There are measurements of lengths, mass, force, volume, time, velocity, density, electric current and many more. These are expressed in different units. Measurements play an important role in daily life because they are useful to do basic tasks like:

      .take a child's temperature with thermometer

      .make time estimations

      .measure out medicine and find weights

      .areas and volumes of different materials or substances

      and many more.

    • profile image

      Jerson G Maniego BSHM-4 (7:30-12:00) 

      20 months ago

      Measurement is important for the HM student like me. because we need to measure all the chemicals that we need to use to clean the rooms etc. and it also helps measure all the food ingredients that we cook and to measure all the important foods that we serve..

    • profile image

      Karen Manalac, BAC 7:30-12:00 

      20 months ago

      I can say that measurement is important, for us to avoid mistakes whenever we need to do something that needs to be measured. Also, it is significant in our course so that we can know how to handle situations carefully especially in our field which involves news regarding the nation and weather aspects.

    • profile image

      Chella Maniquiz, BSTM 7:30-12:00 

      20 months ago

      Measurement is very important in our daily life, especially to every students that will boost their knowledge. Measurement is also important in the field of Tourism Industry. It can help us to know the time estimations when we are travelling and when we want to know the distance of the place, it can also help us to know the child's temperature with a thermometer, therefor measurements are useful to do basic tasks.

    • Leah Mae Perez profile image

      Leah Mae Perez 

      3 years ago

      Measurement is important in our course because measuring is not only use in certain activities but we use it every day..There are many usage of measurement we need to use this when we are taking proper medicine, cooking properly, playing sports or even buying clothes.

    • SarmientoMonic profile image

      Monic dela Cruz Sarmiento 

      3 years ago from San Miguel, Bulacan

      31Sarmiento. MDC BUHM (second account)

      This article is a great help ma'am! Measurement really plays an important role in our daily lives. Cooking foods with different ingredients; getting our body temperature; managing our time; estimating our time in travelling from one place to another: those activities do really applies measurement. I got ideas wherein I can apply it with the program I am taking up. So interesting! I must visit your site more often. :)

    • Paulo Tomas profile image

      Paulo Tomas 

      3 years ago

      TOMAS J P BUHM

      This topic is so hard, you need more study to understand all of this but when the time you memorize all of the equation, all of measurement can solve easily, because it so important to our daily lifestyle, and also to our job in the future. and it can help us to manage our time in job even when you are cooking you need measurement.

    • Jole Ymenel Tila profile image

      Jole Ymenel Tila 

      3 years ago from Pulilan, Bulacan

      Tila Jole Ymenel F. BUHM

      Measurement is very important to our course because we need to give exact measurement of the foods so we will arrive in the quality we are expecting.

    • jairafulgencio profile image

      jairafulgencio 

      3 years ago

      FULGENCIO JM BUTM 2014

      The goals of Physics or Physicist is to express everyday happenings in a concise mathematical formula. These formulas are then used by other Physicist and engineers to predict results of their experiments. Reliability of international tourism statistics are discussed in this article. Differences in method of measurement and problems caused by these different methodol ogies in trying to compile a world total are described.

    • profile image

      28Quizon,CA 

      3 years ago

      To have knowledge about measurement is very important in our field, especially our work is on travelling so measurement of the distant travel to a place to another place

    • profile image

      MARCELO, JME BUTM2015 

      3 years ago

      Measurements are so often taken for granted we sometimes do not appreciate the grand importance measurements play in our lives. On a baseline level, measurements fall into the categories of weight, area, volume, length and even temperature. While we look at these various categories as stoic forms of mathematical measurements a closer examination of things we do in everyday life reveals their clear importance.

    • profile image

      27 PARUNGAO, GT BUTM 

      3 years ago

      Measurement is defined as the act of measuring or the size of something. Covers all aspects of the theory, practice and application of measurement and sensor technology across the sciences.

    • Melanie Samson profile image

      Melanie Samson 

      3 years ago

      31 SAMSON, MH BUTM2014-2015

      Measurement is same as calculation, calculating the things related to a specific field. And this is very important to our course because it helps us do task specifically and productive at the same time.

    • profile image

      Mary Rose Banzon 

      3 years ago

      Measurements play an important role in daily life because they are useful to do basic tasks, such as take a child's temperature with a thermometer, make time estimations, measure out medicine and find weights, areas and volumes of different materials or substances.

    • Capanas MJ BUHM profile image

      Capanas MJ BUHM 

      3 years ago

      Capanas MJ BUHM

      Measurement of an object can be judged by the following meta measurement criterial values.

    • renzocauzon profile image

      renzocauzon 

      3 years ago

      09 Cauzon,RA BUHM

      Measurement is very important in our daily activities especially in cooking. As a HM student whenever you use chemical compounds whether you are adding salt or condiments to your cooking quantities of substances must be measured. It is important to us to study this because of our course.

    • profile image

      John Andrew Cabrera 

      3 years ago

      measurement has a great help in tourism management because it measures the distance of the traveler in a travel, the weight of their baggage, and something to do with the things in their units.

    • Glenric Samaniego profile image

      Glenric Samaniego 

      3 years ago

      Measurement is a very critical factor in Hospitality Management, We have to measure every detail we do in everything.

    • Ellen Canoza profile image

      Ellen Mae M. Canoza 

      3 years ago from Bonga Mayor, Bustos Bulacan

      03, Canoza EM BUHM

      Measurement have a big connect in Hm students, like in the utensils that we use in cooking, all the teaspoon or tablespoon have a metric/measurement units. Measurement is a huge help in our course. Cooking properly. On a baseline level, measurements fall into the categories of weight, area, volume, length and even temperature. Cooking of all forms is based on proper attention to measurement.Measurements are so often taken for granted we sometimes do not appreciate the grand importance measurements play in our lives.

    • profile image

      Miguel Panlilio 

      3 years ago from Baliuag Bulacan

      PANLILIO M.A.R BUHM14

      measurement plays an important role in our everyday lives especially in hospitality industry specifically on culinary industry. measurement of ingredients is important. this is very helpful, it taught me to be more careful on my work.

    • simplyariannejoy profile image

      simplyariannejoy 

      3 years ago

      17 Flores, AJ BUHM

      Whenever you use chemical compounds whether you are adding salt to your cooking, putting antifreeze in your car radiator, or choosing a dosage of medicine-quantities of substances must be measured. Measuring ingredients for cooking and recipes. Measurement is really important to the Hospitality Management industry. We need to be exact. To be perfect in everything that we do in our field of work. Cooking, measurements of the ingredients. Cocktails or mocktails, measurements of the liquor or juice to put. Housekeeping, measurement of the chemicals used in cleaning and even the measurements of linens when making up a bed. These are just some of the examples in our industry that needed measurement.

    • profile image

      Johnmarverickr 

      3 years ago

      Measurements are so often taken for granted we sometimes do not appreciate the grand importance measurements play in our lives.

      There are many usage of measurement we need to use this when we are taking proper medicine, cooking properly, playing sports or even buying clothes.

    • Richmond V profile image

      Richmond V 

      3 years ago from Bustos, Bulacan

      There are many reason why measurement is important is our lives. We need to use when we are cooking, when buying something, when we estimating and even telling time.

    • simplyariannejoy profile image

      simplyariannejoy 

      3 years ago

      17 Flores, AJ BUHM

      Measurement is really important to the Hospitality Management industry. We need to be exact. To be perfect in everything that we do in our field of work. Cooking, measurements of the ingredients. Cocktails or mocktails, measurements of the liquor or juice to put. Housekeeping, measurement of the chemicals used in cleaning and even the measurements of linens when making up a bed. These are just some of the examples in our industry that needed measurement. Measurement is important to us. Measurements are essential in chemistry and all its applications. Whenever you use chemical compounds whether you are adding salt to your cooking, putting antifreeze in your car radiator, or choosing a dosage of medicine-quantities of substances must be measured. Measuring ingredients for cooking and recipes. A number of measures have been taken to record each guests experience, everything from the comment card with the restaurant check or at the bedside, automated calls inquiring of a recent stay, and e-mail inquiries after each guest checks out.

    • mchristinelopez profile image

      mchristinelopez 

      3 years ago

      LOPEZ, MARIE CHRISTINE , BUHM

      Measurement is important to our course Hospitality Management because in our industry we our going to deal with chemicals for example in housekeeping we need to know the measure of chemicals because it can harm us and also our guest if we don't know the right amount. also in serving food we need to know the right measure of ingredients in cooking.

    • Patricia Rivera profile image

      Patricia Rivera 

      3 years ago

      Measurement is really important in our lives. Especially when you're a student it needs time management and needs to discipline yourselves to pursue your dreams.

    • Cess Capulong profile image

      Cess Capulong 

      3 years ago

      Measurement is easily taking for granted. We, as it see everywhere, really don't appreciate the use of it. Measurement is also connected in math. And the knowledge we got on it is really important.

    • profile image

      KennethCorpuz 

      3 years ago

      30 CORPUZ KENNETH B. BUTM14

      MEASUREMENT.is a long of units and symbol of the density and velocity.about connect OF course in (TM) tourism management. because apply of long and run away from distance and velocity in rides of airplane and out of is not consider airport. and how the driving in connect in the pilot. to drives the airplane

    • Joyce De Guzman profile image

      Joyce De Guzman 

      3 years ago from San Ildefonso, Bulacan

      Measurement is finding a number that shows the size or amount of something. Everyday we are measuring. From the moment we wake up and and the end of the day we have measurement. In relation to our course, we often measure. When we are cooking measurement is really a must and also when we are cleaning we should have the exact amount of everything to perfect our work.

    • AndreaBarcita profile image

      AndreaBarcita 

      3 years ago

      3 BARCITA AR M. BUHM14

      Measurement is very important in studying hospitality management because it will be one of our useful tools to achieve the right amount of everything in terms of cooking.

    • profile image

      Brillant Joshua Dela cruz 

      3 years ago

      Measurement is very important to us Hospitality Management students because we need to be accurate on the Ingredients that we are going to use and some Beverages that is needed to combine with another Liquid.

    • profile image

      michael steven 

      3 years ago

      measurement of an object can be judged by the following meta-measurement criteria values: level of measurement (which includes magnitude), dimensions (units), and uncertainty.

    • Carl patrick tan profile image

      Carl patrick tan 

      3 years ago

      33 TAN BUHM

      Measurement is very important and has to do with our field in HOSPITALITY MANAGEMENT Measurements play an important role in daily life because they are useful to do basic tasks, such as take a child's temperature with a thermometer, make time estimations, measure out medicine and find weights, areas and volumes of different materials or substances. It helps us to know how we put ingredients in the food that we are going to serve to our guests and to be able to know that we put the exact amount of ingredients in the food.

    • Joshua Lim Calma profile image

      Joshua Lim Calma 

      3 years ago from San Miguel Bulacan

      CALMA JOSHUA

      Any measurement of an object can be judged by the following meta-measurement criteria values

    • profile image

      Janice Gonzales 

      3 years ago

      17 GONZALES JB BUTM 2014

      As a tourism student measurement is important to measure the food that we serve to the passenger and to know the distance we travelled

    • profile image

      john carl ballentes 

      3 years ago

      BALL E N T E S JOHN CARL B U H M 2014 2015

      measurement in important in my field because in creating a food you need the exact measure also in creating beverage because all beverage have exact volume of alcohol

    • Carla Katrina profile image

      Carla Katrina Liwag 

      3 years ago from Baliwag, Bulacan

      LIWAG, CK BUHM 2014

      Knowledge of measuring is important to us, as a HM students because we apply it when we measures ingredients, and to measure the right amount of liquor to be mix and serve.

    • Elli Rose Gabriel profile image

      Elli Rose Gabriel 

      3 years ago

      1 BALELA, E.G BUTM 2014

      to know the measure of anything that we are need to measure we must first need to learn how to use it properly and this report will helps us a lot.

    • Clarenz Maximo profile image

      Clarenz Maximo 

      3 years ago

      21 MAXIMO CR BUTM 2014

      Measurement is important in our field we can measure the distance if we go in another place. Its good to have a knowledge about measurement it can helps our working life.

    • Jonna Mae Book profile image

      Jonna Mae Book 

      3 years ago

      04 BOOK, JM BUTM 2014

      Measurement if important in our everyday living. But as a tourism student this is important to know because for example, how many baggage or luggages can the airplane support or how many baggages can the baggage counter fill. Also the measurement of the airplane to the ground. This is also needed in the food and beverages, how to measure the tablespoon the ingredients also the measurement of the drinks like wines. That's why it's important.

    • Julien Villanueva profile image

      Julien Villanueva 

      3 years ago

      Villanueva, Julien / BUHM 2014-2015

      Measurement is really important to the Hospitality Management industry. We need to be exact. To be perfect in everything that we do in our field of work. Cooking, measurements of the ingredients. Cocktails or mocktails, measurements of the liquor or juice to put. Housekeeping, measurement of the chemicals used in cleaning and even the measurements of linens when making up a bed. These are just some of the examples in our industry that needed measurement. Measurement is important to us.

    • yuriannesantos profile image

      yuriannesantos 

      3 years ago

      35 Santos YA, BUTM 2014

      Measurement is important in our course because you can't compute a certain problem if you will not study the formula. In our course we are facing many kinds of measurement like in the ingredients of the foods and drinks, and if there is a curious passenger and ask something involving the measurement you can answer their questions.

    • jeaniejeanjean profile image

      Jean Abando Ortiz 

      3 years ago from Malolos,Bulacan

      26 ORTIZ JA BUBSPSY 2014

      Measurement is very important in my course in a way of measuring the medicine I am going to give to my patients in a specific disorder.

    • Chlaryse Tesaluna profile image

      Chlaryse Tesaluna 

      3 years ago

      37 TESALUNA C BUTM 2014

      Measurement is important for tourism students especially to those engineer people, etc. Measurement is important in our lives for us to know what is the exact measure of those liquids and anything that we need.

    • Bhel Marie profile image

      36MendozaMMBUHM 

      3 years ago

      MENDOZA, BHEL MARIE N. BUHM1-1

      Measurement is important to Hospitality Management because we measure all the chemicals that we need to use to clean the rooms etc. and it also helps measure all the food ingredients that we cook.

    • KadowakiTBUHM profile image

      Takako Kadowaki 

      3 years ago

      21 Kadowaki T BUHM 14

      Measurement is important in our course because measuring is not only use in certain activities but we use it every day.. We use measurement in cooking, cleaning and other activities..

    • profile image

      35 SAN PEDRO PM, BUTM 2014 

      3 years ago

      Measurement is one of the most important component of my course, tourism management because we belong in the airline industry and in this industry it is important to know the measurement specially the distance of a place from another because we will meet different people who will go to different destinations and they might ask us the distance of a country so we have to know the precise & exact distances of places.

    • profile image

      35 SAN PEDRO PM, BUTM 2014 

      3 years ago

      Knowing the measurement of a chemical is important for the completion of an experiment. It is important to be precise and exact because if not, something may go wrong. We should also be careful while measuring an experiment because something may go wrong if we will not be careful. Using the proper equipments and knowing the exact measurements will lead us to a successful experiment.

    • Heidi Valerio profile image

      37ValerioMMBUHM 

      3 years ago

      37ValerioMMBUHM

      Measurement is important in Hospitality Management.

      basically in measuring the ingredients of the food that we cook, and in measuring the ingredients of the chemicals that we need in cleaning.

    • Estacio M O BUTM profile image

      Estacio M O BUTM 

      3 years ago

      Measurement is important in Tourism industry because we will know the distance and time of travel and also for the foods that we served to the tourists to be satisfied.

    • DeGuzmanMMBUHM15 profile image

      DeGuzmanMMBUHM15 

      3 years ago

      Measurement is very important in my course (Hospitality Management ) especially in cooking and cleaning. We need to know the proper amount of the ingredients and chemicals that we need to avoid harm to our guest.

    • James Leoni III profile image

      James Leoni III 

      3 years ago from Candaba, Pampanga

      20Leoni J BUHM

      Measurement is important in our course.So we can measure our foods our time to do it well.

    • Dindin Rivera profile image

      Dindin Rivera 

      3 years ago from Baliuag, Bulacan

      RIVERA DINDIN

      BSTM-IV

      Measurements play an important role in daily life because they are useful to do basic tasks, such as take a child's temperature with a thermometer, make time estimations, measure out medicine and find weights, areas and volumes of different materials or substances. For examples, people use measurements in simple home task like cooking where one may need to use a weighing scale or read the temperature of an oven when baking foods.

    • Klaudine Bianca profile image

      2AlcantaraMMBUHM 

      3 years ago

      Measurements play an important role in daily life because they are useful to do basic tasks, such as take a child's temperature with a thermometer, make time estimations, measure out medicine and find weights, areas and volumes of different materials or substances. For examples, people use measurements in simple home task like cooking where one may need to use a weighing scale or read the temperature of an oven when baking foods.

      2ALCANTARA KBF BUHM

    • CruzATBUHM10 profile image

      CruzATBUHM10 

      3 years ago

      Measurement is very important in Hospitality Management because like in cooked food, very important to know how to measure the ingredients in right amount and the exactly temperature to avoid the food over cooked.

    • Johnrenz Santos profile image

      Johnrenz Santos 

      3 years ago from Candaba, Pampanga

      24santos J.R.A BUHM 14

      as hm student it helps me a lot for everyday i go to my university as i do when im graduated in my course

    • Kyla Mae Navarro profile image

      Kyla Mae Navarro 

      3 years ago

      24NAVARRO, KDG BUTM2014

      Measurement is very important and has to do with our field in tourism. There is a required height to the flight attendants and the age needed for us to qualify in the position. It helps us to know the exact time needed for a travel and the distance of a travel. Measurement also helps us to check the weight of the baggages and luggages of the passengers. We must also have the knowledge of the body temperature for us to check if the passengers is sick or need medical assistance.

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