Across
- 3. energy that may be ultrasonic
- 5. ice cubes shrink while in the freezer
- 8. gasoline disappears from an open can left in the sun
- 9. energy that causes aurora borealis or northern lights.
Down
- 1. energy source within the sun
- 2. frost forms overnight on your car's windshield
- 4. surface of a pond becomes solid enough to hold skaters
- 6. energy that is the sum of kinetic found in the particles of a substance.
- 7. energy that may be ultraviolet or other invisible forms of radiation.