Recent Comments

How to Grow Your Own Crystals

SAFETY FIRST: Ask an adult to help with tools you haven't used before.

It might seem like magic, but all you’re doing is collecting salt crystals from evaporated salt water. (It’s still cool!)


  • Salt
  • 4 cups of water
  • Tablespoon
  • Wooden spatula
  • Saucepan
  • Heat-safe glass jar
  • String
  • Paperclip
  • Pencil
  • Food coloring (optional)


1. With the help of an adult, bring the water to a boil in the saucepan. Fill the jar with the hot water.

2. Add salt to the hot water one tablespoon at a time until no more salt can dissolve into the water. Stir each time you add the salt until it fully dissolves. It will take about one tablespoon of salt for every ounce of water.

3. Tie one end of the string to the middle of the pencil. Attach the paperclip to the other end, which will keep the string hanging straight in the jar.

4. Place the pencil on top of the jar so the string hangs down into the middle of the jar. If the paperclip touches the bottom of the jar, it is too long. To add color to your crystals, put a few drops of food coloring in the water.

5. Put the jar in a warm place. Within a few days, the water will start to evaporate and you will see your salt crystals forming. The longer you let it sit, the more crystals you will grow.

Submit a Photo of Your Project

Important Note: Please only upload photos of your project. Because of privacy rules, we can't post any photos that show people's faces. Always ask for your parent's permission before uploading anything to a website.

14 Comments on How to Grow Your Own Crystals

  1. No. It is just coloured salt. It will taste like salt.

  2. I have not done it yet. does the rock candy taste good?

  3. Very funny to do. I had a lot of fun while doing it.

  4. it took me a long time but it was worth it

  5. COOL

  6. Boiboi12345 // April 28, 2020 at 12:45 pm // Reply

    What was the wooden spatula for?

  7. Bhbdfjvcvbfivevke // April 23, 2020 at 4:49 pm // Reply

    This website is awesome

  8. Speedy Gonzales // April 19, 2020 at 10:49 am // Reply

    took me a while to stir in the salt, but it was worth it

  9. This is awesome…I did both the Rock Candy…It’s powerful

  10. does the rock candy taste good?

  11. Old Arrowman // July 8, 2017 at 6:42 am // Reply

    Use sugar instead of salt, and you have rock candy!

  12. president sailor // June 22, 2017 at 4:33 pm // Reply

    This is interesting because the salt sticks to the string and the paperclip. adding food coloring to the water changes the color of the crystal. This is an easy and interesting project.

  13. Old Murk-Eye // June 22, 2017 at 4:29 pm // Reply

    i think this article is really cool. it definitely got my attention. this article basically shows and tells you how to make tells you the tools you will need to make it. the things you will need will be Salt,4 cups of water,Tablespoon,Wooden spatula,Saucepan,Heat-safe glass jar,String,Paperclip,Pencil,and Food coloring that is optional

Leave a Comment

Please don't use your real name.