Question

part 2: true or false
directions: circle t for true or f for false. (pictures will appear next to each se pdf.)

1. t f a chemical change makes a new substance.
2. t f tearing paper is a chemical change.
3. t f a physical change can often be reversed.
4. t f rusting is a chemical change.
5. t f melting chocolate is a physical change.

Explanation:

1. A chemical change involves the formation of new substances.
2. Tearing paper only changes its physical form, not its chemical composition.
3. Physical changes like melting or freezing can often be reversed.
4. Rusting (oxidation) results in a new substance (rust).
5. Melting chocolate changes its state (solid to liquid) but not its chemical makeup.

Answer:

1. T
2. F
3. T
4. T
5. T