these are some investigations to try at home or ittah anyway the first one is bicarbonate of soda trick
This is what you'll need if you're going to do this yourself:
You will need Safety Glasses!
Two jars, or other transparant containers,
A spoon,
Vinegar,
Baking Soda,
Bring paper towels to clean up any spills.
1. Set out both glass jars.
2. Pour about two table spoons of vinegar into the first jar.
3. Now, take about two heaping teaspoons of baking soda into the second jar (the one that has not yet been used).
4. Pour the vinegar from the first jar into the second jar (the one with the Baking Soda).
5. Watch as the two chemicals react.
6. Clean up any spills.
