Evidence of Chemical Reactions
7th Grade · Science · 60 min· Tn State Standard: 7.ps3.1-2
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Learning Objective
I can identify evidence of chemical reactions.
- 1
In a chemical reaction, the original substances are called the reactants, and the new substances that are formed are called the products.
- 2
The metal on the bicycle was undergoing a chemical reaction that produced rust, which is the result of iron atoms combining with oxygen molecules from the air.
- 3
Using visual models, like marshmallows, can help students understand how atoms rearrange into different molecules during a chemical reaction.
