Did you know that some rocks will Fizz if you put them in Vinegar? Vinegar, an acid, dissolves bits of a material called calcium carbonate in limestone. This releases carbon dioxide, a gas that rises to the surface as a stream of bubbles. Rocks that don’t contain calcium carbonate won’t fizz. Head outside and see if any of your rocks Fizz. Here’s what you’ll need Uplanders…
Materials: Vinegar, Glass, Small chunk of limestone rock , Several different rocks.
Directions: Pour a half cup of vinegar into a glass. Add a small chunk of limestone rock. (Find limestone outside using a rock identification book or buy a piece at a hobby shop). Watch closely. After a few minutes the rock will start to fizz. Now try the same test with other rocks and minerals. You may not see any bubbles.
Where there rocks that fizzed more than others? Why do you think that was?
In your trials did you see anything else unusual?
Let me know what you find Uplanders….and good luck!
