Across
- 3. Something that gives off heat when it burns
- 5. Kind of energy that lets us see
- 7. When something bends light
- 9. Kind of energy that can make something melt or boil
Down
- 1. How high or low a sound is
- 2. When light bounce off an object
- 4. Moves back and forth
- 6. Kind of energy that you hear
- 8. Power to make matter move or change