What this lesson teaches
Physical vs chemical changes.
Can you finish physical vs chemical change in about 25 min?
You will physical vs chemical changes.
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Physical vs chemical changes.
Classifying changes develops the core scientific skill of using observable evidence to support a claim. This activity creates a personal experiential database of examples that students can reference when encountering new substances — stronger and more flexible than a memorised definition.
1. Pick card. 2. Reversible? Physical. 3. New substance? Chemical. 4. Sort all 20.