Solar Energy on Earth

2. The amount(measured in joules) of thermal energy needed to raise the temperature of 1kg of material by 1C.
6. To move from one place to another.
9. The transfer of energy by electromagnetic waves.
10. The distance in degrees north or south of the equator.
11. To move in one direction, hit a surface, and then quickly move in a different and usually opposite direction.
12. To be present in more places throughout a large area.

1. The transfer of thermal energy between materials by the collisions of particles.
3. To change into a different form.
4. Energy due to motion.
5. Not completely but mostly.
7. A small piece of matter.
8. A space completely empty of matter.
13. To return light, heat, sound, and so on, after it strikes a surface.