Across
- 4. Energy due to motion.
- 5. to think quietly and calmly
- 10. To move from one place to another.
- 13. Always moves from areas of higher temperature to areas of lower temperature.
- 15. Describes how much solar radiation is reflected off of a surface.
- 16. A space completely empty of matter.
- 17. A small piece of matter.
- 18. To move in one direction, hit a surface, and then quickly move in a different and usually opposite direction.
Down
- 1. To change into a different form.
- 2. The amount (measured in joules) of thermal energy needed to raise the temperature of 1 kg of a material by 1°C.
- 3. To return light, heat, sound, and so on, after it strikes a surface.
- 6. The distance measured in degrees (°) north or south of the equator.
- 7. The transfer of thermal energy between materials by the collisions of particles.
- 8. Not completely but mostly.
- 9. To take in or soak up.
- 11. To be present in more places throughout a large area.
- 12. The transfer of energy by electromagnetic waves.
- 14. A device that uses suction to remove dirt and dust from surfaces.
