Across
- 3. Matter can ______ when it loses heat.
- 5. We see an object when it _______ light into our eyes.
- 7. Objects that give off light.
- 9. Light is a form of _____.
- 10. Things become colder due to heat _____.
- 12. A measure of how hot something is.
Down
- 1. Things become hotter when they _____ heat.
- 2. Good _______ of heat allow heat to flow through easily.
- 3. Temperature is measured in degree _______.
- 4. An equipment to measure temperature.
- 6. Light travels in a _____ line.
- 8. Matter can _____ when it gains heat.
- 11. Forms when light is blocked.