CREATE YOUR OWN CAVE CRYSTALS

In this fun and easy crystal science experiment for kids, we’re going to to create our own cave crystals by growing stalagmites and stalactites.
 
 
Materials:
 
  • Mixing bowl
  • Box of Epsom salts
  • Spoon
  • 2 glasses or jars that are the same size
  • Water
  • Wax paper
  • Tape
  • Thick piece of string or cloth that easily absorbs water

 

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Instructions:
 
  1. Add about four cups of water to your mixing bowl.
  2. Mix in Epsom salts until the will no longer dissolve. There will be some Epsom salts in the bottom of your mixing bowl.
  3. Lay out a sheet of wax paper.
  4. Fill each of the glasses about halfway with the Epsom salt solution.
  5. Place the ends of the string into each of the glasses. You want the glasses sitting six to eight inches apart. Use the tape to secure the string to the edge of the glasses. Try to do so in a way that does not smoosh the string.
  6. Watch your stalactites and stalagmites grow over the next few days.

 

I hope you enjoyed this super quick tutorial and enjoyed creating your own cave crystals by using Epsom salts to grow stalagmites and stalactites. These crystals are very easy to make and a lot of fun!
 
 
Pro tip: Use this activity to create some excitement around discussions or lessons regarding geology, caves and caverns, crystals, and more!
 
 
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Happy Excavating!
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