Across
- 3. Energy stored in stretched or compressed materials
- 5. Visible energy that travels in waves
- 6. Energy that runs through wires and powers devices
- 9. Energy of motion
- 11. Transfer of heat through direct contact
- 13. Type of potential energy related to height above the ground
- 16. Energy we hear
- 18. Another term for thermal energy
- 19. Energy in a car or a person riding a bike
- 20. Energy stored in bonds of molecules
- 21. Fuel source we extract from the ground and burn to release energy
Down
- 1. Stored energy that can later be released
- 2. Needed to make things happen
- 4. Material that we put in our houses to reduce heat transfer
- 7. Transfer of energy through space without particles
- 8. Energy stored inside an atom
- 10. Devices that convert sunlight into electricity
- 12. Path for electric current to flow around
- 14. Tools and machines that help solve problems
- 15. Transfer of heat by fluid movement
- 17. How well energy is converted without waste