Across
- 4. a change that begins with one type of matter and ends with a new type of matter
- 5. this material forms when iron reacts with oxygen in the air
- 7. required for a change of state
- 8. a physical change that requires one state of matter to change into another state of matter
Down
- 1. a change that begins and ends with the same kind of matter
- 2. when energy is taken away and a liquid becomes a solid
- 3. change of state where a solid changes to a liquid
- 6. the slow change of a liquid to a gas
- 9. when metals become discolored