ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Grow Crystals at Home in a Jar of Water - A Science Experiment for Kids

Updated on April 13, 2021
divacratus profile image

I am a research enthusiast who is fascinated by science and forever on the lookout for educational experiments suitable for adults and kids.

Fossil shell with calcite crystals
Fossil shell with calcite crystals | Source

Crystals and Gemstones

Before getting to know how to make your own crystals at home, let us get to know a little about crystals and gemstones.

How fascinated are you with crystals like diamonds and rubies? Do you know how they are formed? The earth’s surface comprises molten rocks. Once these rocks cool, the minerals present in these rocks change to form crystals of different shapes and sizes. Each crystal might differ from the next in terms of the number of sharp corners, edges, design, structure, number of sides, etc. Some of the crystals can be categorized as gemstones or gems. Gems tend to be hard in structure and they get washed down into rivers when the rocks where they were formed wear off.

As you all might know, the hardest gemstone to exist is the diamond. It is the hardest mineral to be found on Earth. Diamonds are formed from carbons that have cooled down. Owing to their hard composition, many industries use diamonds as tools in mining and drilling – they can cut through hard metals quickly and accurately.

A corundum mineral produces rubies and sapphires. This mineral contains tiny quantities of Chromium which gives rubies their distinctive Red coloration. Rubies are generally used in industries, medical fields, communications, and scientific research for laser productions. The ruby crystal helps to produce a strong beam of light that can cut through and melt substances. This thin beam of light is able to cut objects with great accuracy.

The largest concentration of crystals is found amid rocks but there are various other occurrences of crystals in nature. For example, a snowflake is in a single crystallized form whereas an ice cube can be considered as a polycrystal. There are living beings out there that can produce crystals as well. For example, calcite crystals can be produced by most mollusks.

On this page, you will find a simple Science experiment for kids that tell you how to grow your own crystals at home in a jar of water. The whole setup can be done in a matter of minutes and it will take few days for results to be shown. The experiment is pretty basic and is apt for kids who take an ardent interest in Science experiments.

Did You Know?

Diamonds are so hard that it takes one diamond to cut through another one. A rough diamond can have as many as 58 sides after it has been cut and polished.

How to Grow Your Own Crystals

This is a pretty simple Science experiment. All you need to do is add some washing soda to a jar of hot water. Keep this jar in a warm room for a few days and you will be able to see crystals forming. Since you need really hot water for this experiment, parental guidance is advised.

Things you will need:

  1. String
  2. A teaspoon
  3. A paperclip
  4. Some hot water
  5. One pencil
  6. Some washing soda crystals
  7. Two glass jars
  8. A small bowl


  1. Put the teaspoon into one of the two jars.
  2. Fill the jar up with hot water.
  3. Add a few teaspoons of washing soda to the water.
  4. Stir this mixture for some time.
  5. Add more washing soda to this mixture and stir again.
  6. Fill the bowl with hot water and allow the jar of hot water to stand in it.
  7. Keep on adding hot water, washing soda to this jar, and keep stirring. You need to keep adding washing soda till no more washing soda can dissolve in water.
  8. Allow this liquid to cool down.
  9. When it is cooled, pour the content into the other jar.
  10. Tie a paper clip to one end of the string and tie the other end of the string around a pencil.
  11. Place this pencil across the jar in such a way that the paperclip dips into the water in the jar.
  12. Keep this jar aside. Check again after few days. You will find a large lump of crystals near the paperclip.

How to Grow Crystals Quickly

Making Colored Crystals

It is very easy to create colored crystals as well. Use copper sulfate powder mixed with water and leave it to rest for some time. You will be able to produce stunning blue-colored crystals. The following video shows you how.

© 2014 Kalpana Iyer


This website uses cookies

As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

Show Details
HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
LoginThis is necessary to sign in to the HubPages Service.
Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
AkismetThis is used to detect comment spam. (Privacy Policy)
HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
MavenThis supports the Maven widget and search functionality. (Privacy Policy)
Google AdSenseThis is an ad network. (Privacy Policy)
Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
Index ExchangeThis is an ad network. (Privacy Policy)
SovrnThis is an ad network. (Privacy Policy)
Facebook AdsThis is an ad network. (Privacy Policy)
Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
AppNexusThis is an ad network. (Privacy Policy)
OpenxThis is an ad network. (Privacy Policy)
Rubicon ProjectThis is an ad network. (Privacy Policy)
TripleLiftThis is an ad network. (Privacy Policy)
Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
ClickscoThis is a data management platform studying reader behavior (Privacy Policy)