Across
- 2. produced by the sun and also called thermal energy
- 4. particles of light that make up solar radiation
- 7. energy sources that do not replenish faster than they are used, such as coal.
- 9. produced by the sun in rays and photons
- 11. energy sources that replenish faster than they are used, such as solar.
- 13. this takes place in the sun's core
- 14. converting sunlight into electricity using semiconductors
- 15. methods of energy collection
- 17. this substance protects people from dangerous UV light emitted by the sun
Down
- 1. layer in which ozone is contained
- 3. utilizing mirrors or lenses to focus sunlight for power generation
- 5. the lightest element, fused into helium in the sun's core
- 6. heaviest element that is formed by fusion in the sun's core, is only formed near the end of a star's life
- 8. energy produced using the sun
- 10. element formed by fusion of hydrogen in the sun's core
- 12. this is what is obtained by solar panels and is necessary for life to function
- 16. large celestial body that releases photons, the earth revolves around this.