In this fun and easy geology science experiment, we’re going to investigate and explore how limestone caves are formed.
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  1. Place the chalk in the glass.
  2. Cover the chalk with vinegar and wait five minutes.
  3. The chalk will begin to dissolve.
  4. The chalk represent limestone which can be dissolved underground by the acids in rainwater. The empty void left behind represents a limestone cave.


I hope you enjoyed this super quick tutorial and had fun investigating and exploring how limestone caves are formed. 
Pro tip: Use this activity to create some excitement around discussions or lessons about caves, caverns, geology, and more!
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