Across
- 5. energy made by combining natural substances
- 7. energy that is kept or collected to be used later
- 9. Objects that turn chemical energy into electrical energy
- 10. an activity that makes something happen
- 13. to make something different or to become different
- 14. energy that can be used to do work
- 17. to throw light, sound or heat back toward where it came from
- 19. substances in food that living need to stay healthy and grow
- 20. energy that moves something from one place to another
Down
- 1. to move back and forth very quickly
- 2. the ability to do work or make a change
- 3. a nutrient in food that can give you energy
- 4. a nutrient in food that can give you energy, and helps you grow and stay healthy
- 6. energy that brings warmth you can feel
- 8. energy that gives power to things that run on electricity
- 11. energy that lets you see
- 12. a sloped path things can roll on to move between a higher level and a lower level
- 15. a nutrient in food that your body stores up to give you energy when you need it
- 16. an electric light that runs on batteries and is easy to carry
- 18. energy that lets you hear