The biosphere is the outermost part of the planet’s shell- including air, land, surface rocks and water – within which life occurs.
Sometimes it's important to work for that pot of gold. But other times it's essential to take time off and to make sure that your most important decision in the day simply consists of choosing which color to slide down on the rainbow. ~Douglas Pagels, These Are the Gifts I'd Like to Give to You
Gas is one of the three forms of matter. Every known substance is either a solid, liquid or a gas. These forms differ in the way they fill space and change shape. A gas, such as air has neither a fixed shape nor a fixed volume and has weight.
The branch of chemistry, which deals with the numerical relationships of elements and compounds and the mathematical proportions of reactants and products in chemical transformations, is known as stoichiometry.
The reactions of matter whether occurring in natural processes or in the laboratories can be interpreted using another language of chemistry – the equation. A chemical reaction transforms one or more substances into a set of different substances. The substances that enter into a chemical reaction...
Chemistry is involved with various and diverse interactions of matter either around us or simply inside the laboratory. These are described using the language of chemistry which consists of symbols, formulas and equations..
If all the elements are arranged in the order of their atomic weights, a periodic repetition of properties is obtained. This is expressed by the law of periodicity.— Dmitry Ivanovich Mendeleev
Matter is composed of very small ultimate particles, or atoms of matter.
Matter is anything that occupies space and has mass.
“I need to be alone. I need to ponder my shame and my despair in seclusion; I need the sunshine and the paving stones of the streets without companions, without conversation, face to face with myself, with only the music of my heart for company.” - Henry Miller
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.
Through the ages, man has learned many things about himself and his environment. However, it was not until he was able to record his discoveries and observations that modern science began. Early scientists started organizing and classifying their discoveries and observations. From this, evolved the...
The atoms of molecules are linked together through a reaction known as chemical bonding.
The danger posed by war to all of humanity - and to our planet - is at least matched by the climate crisis and global warming. I believe that the world has reached a critical stage in its efforts to exercise responsible environmental stewardship. UN Secretary General Ban Ki-moon
There is not going to be, we can be quite certain, there’s not going to be any action on reducing greenhouse gas emissions by China or India or Indonesia or Brazil unless all developed countries are making a major effort. It will still be a big job to get them in, even if we are all making the...
The human skin is the largest organ of the integumentary system which is made up of multiple layers of epithelial tissues that guard underlying muscles and organs.
“It is not always the magnitude of the differences observed between species that must determine specific distinctions, but the constant preservation of those differences in reproduction.”― Jean-Baptiste Lamarck
Life substances are substances, which contain the life or food, which vivifies and sustains. But those who fail to receive these life-giving substances will, sooner or later, realize their necessity … Carlos Kosel
The spinal cord is a long cable-like structure made up of hundreds of nerve fibers, which is approximately 17 inches (42 cm) long. The brain and the spinal cord composed the central nervous system.
“Something will have gone out of us as a people if we ever let the remaining wilderness be destroyed ... We simply need that wild country available to us, even if we never do more than drive to its edge and look in.” – Wallace Stegner, The Sound of Mountain Water
Its only when we truly know and understand that we have a limited time on earth and that we have no way of knowing when our time is up, we will then begin to leave each day to the fullest, as if it was the only one we had. - Elisabeth Kubler-Ross
Your sweetheart leaves a note on the refrigerator: " I Love you and see you later for a dinner at our favorite eatery, be ready.” a green crispy mango with hot chili sautéed shrimps on the table; a loud sound outside your house. All of these are examples of the works of the nervous system...
We must not be forced to explore the universe in search of a new home because we have made the Earth inhospitable, even uninhabitable... ~ D. G. Kaufman and C. M. Fran, from Biosphere 2000