Meant to follow an activity in which young chemists identified an unknown substance by chemical reactions, they now take their data and use it to determine which materials combine to make up baking powder. This lesson is one that can be cut out of the unit if you are short on time as it does not introduce any new concepts. 

Concepts

chemical reactions

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Additional Tags

chemical reaction, science

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Pros

• An engaging enrichment and review of the chemical changes observed in preceding lessons

Cons

• None