Across
- 1. When matter is squeezed into a smaller space (10 letters)
- 3. When a substance is warmed up or made hotter (6 letters)
- 4. When a gas changes to a liquid state (9 letters)
- 6. When a liquid changes to a solid at 0°C for water (7 letters)
Down
- 1. When a substance is made colder or loses heat (6 letters)
- 2. The force exerted per unit area on a surface (8 letters)
- 5. When a liquid changes to a gas or vapor (9 letters)