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:
Two jars
Water
Epsom salts
String
Small weights
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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