Across
- 2. Person walking, a thrown baseball, charged particle in an electric field
- 5. Solar air conditioning, solar balloon, solar cell phone charger
- 6. The force that holds the gases in the sun
- 7. Carbon dioxide, helium, oxygen
- 8. Sun, solar, stars, candles
Down
- 1. The warmth from the sun, cup of hot chocolate, the heat from a heater
- 3. Electricity, Nuclear weapons, nuclear medicine, food treatments
- 4. Hammer, bowling ball, windmill,