Across
- 2. What kind of energy comes from the sun?
- 4. What is the process of changing liquid water into water vapor called?
- 8. liquid often used as fuel
- 9. What force pulls objects down toward the Earth?
- 10. study of building machine and structures
- 11. What device generates electricity by rotating, often found in bikes?
- 14. What type of energy is produced by burning fuels?
Down
- 1. machine used in construction to lift heavy objects
- 3. What force slows down a ball when it rolls on the ground?
- 5. smallest unit of a chemical element
- 6. What metal is commonly used to make electrical wires?
- 7. What device stores chemical energy to power machines and gadgets?
- 8. What simple machine helps in lifting objects using a rope and wheel?
- 12. What device changes electrical energy into mechanical energy?
- 13. What space has no air