Make Stalactites and Stalagmites

20/10/2011
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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

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