Birthday cake wouldn't be light and fluffy without the chemical reactions between ingredients. Young scientists explore some chemical reactions in the 11th installment of a 16 lesson Inquiry in Action series. They determine the substances that combine to make baking powder and identify which react with water to create a gas. 

Concepts

baking soda, chemical properties, physical properties, chemical reactions

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Instructional Ideas

• Ask pupils to compare reactions of baking powder with vinegar and water

Classroom Considerations

• Expects the ability to recognize indicators of a chemical reaction
• Collect and prepare materials prior to the activity

Pros

• Emphasizes the use of the scientific method
• Offers an option for extending the lesson

Cons

• None