Across
- 2. A unit used to measure energy
- 3. The form of energy used to power homes and devices
- 4. Energy that travels in waves and lets us see
- 8. A type of energy that travels through space as waves
- 9. The energy of motion
- 10. Energy from the sun
- 11. A type of energy stored in food
- 13. A type of fuel made from ancient plants and animals
- 18. A source of energy that can run out
- 20. Energy related to heat
Down
- 1. A material that blocks the flow of electricity
- 5. Energy that comes from moving water
- 6. A material that allows electricity to flow easily
- 7. The ability to do work
- 12. A clean energy source from wind
- 14. A renewable energy from Earth's heat
- 15. Energy made by splitting atoms
- 16. A device that turns sunlight into electricity
- 17. The energy stored in stretched or compressed objects
- 19. Energy stored in batteries