A chemical reaction occurs when two or more substances combine and a new substance is formed. Evidences of chemical reactions include: changes in color, new smells, gas being released, newly created substances, heat, and fire. Scientists (Chemists) have discovered many useful items by combining elements and the reaction created a new substance. Some of these discoveries have included soap, rubber, plastic, and cement.
To test our knowledge of chemical reactions we observed a reaction between baking soda and vinegar. The baking soda and vinegar reacted and released a gas which blew up a balloon!
We also made bouncy balls! Here is the recipe if you want to make one at home.
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