Rock Acid Test Geology Science Experiment
In this fun and easy geology science experiment, we’re going to learn how to perform a rock acid test.
- Several different rocks
- A piece of limestone
- Several glass jars or clear bowls
- Place each different rock in a glass jar. Make sure the limestone is also in a glass jar.
- Fill each jar with vinegar and try to cover each rock at least half way.
- Allow several minutes to pass and observe what happens.
- Does the vinegar react with the limestone or any of the other rocks?
How it Works:
The rock acid test is used by geologists to identify carbonate minerals. They place a drop of diluted hydrochloric acid on a rock or mineral and look for bubbles. The bubbles are carbon dioxide being released by a chemical reaction between the carbonate material and acid.
Make This A Science Project:
Try this experiment with lemon juice instead of vinegar. Try adding a seashell to vinegar. Try adding an egg to vinegar.