In our series of fun science experiments for kids to try at home, you can grow your own Stalagmites and Stalactites!
What you'll need:
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Two jars
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Water
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Epsom salts
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String
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Small weights
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Plate
How to Conduct the Stalactite and Stalagmite Experiment
Fill two jars with warm water. Mix in Epsom salts until no more will dissolve. Wet the string and tie a weight to each end (we used 1cent coins wrapped in cling film). Drop one end of the string into each jar.
Put a plate between the two jars, with the string hanging over the plate. Check at least once a day to see if stalactites and stalagmites have formed.
How do you know which are Stalactites and which are Stalagmites?
Stalactites – Hold on TIGHT (they hang down), the MIGHTY Stalagmites stand up tall
Did you try growing stalactities (and stalagmites)? How did it go? Tell us in the comments below!
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