Answer:
Evaporating water
Melting butter.
Step-by-step explanation:
For a phase change to occur, heat energy needs to be released or absorb, and the process can be reversible. A phase change can cause physical changes but no new substance is formed.
These are examples of phases changes:
- Melting: solid to a liquid (Melting butter)
- Freezing: liquid to a solid
- Vaporization/Evaporation: liquid to a gas (Evaporating water)
- Condensation: gas to a liquid
- Sublimation: solid to a gas
- Deposition: gas to a solid
→Frying eggs in a chemical change (not reversible, a new substance is formed).
→Cutting wood is a physical change.
(*) My little brother (5th grade) just took the test and -evaporating water & melting butter- were the right answers.
(**) Hope this helps others who are looking for the answer of this question :)