Question

1. a phase change occurs when a substance changes between its solid, liquid, or gas forms. there are many examples of this in our daily lives. list four examples of an interaction that results in a phase change.

Explanation:

To answer this, we recall common phase changes (solid ↔ liquid ↔ gas) in daily life:

1. Melting ice (solid to liquid, heat absorption).
2. Boiling water (liquid to gas, heat absorption).
3. Freezing water (liquid to solid, heat release).
4. Condensation (gas to liquid, e.g., dew on grass, heat release).

Answer:

1. Melting of ice (solid to liquid)
2. Boiling of water (liquid to gas)
3. Freezing of water (liquid to solid)
4. Condensation of water vapor (gas to liquid, e.g., dew formation)