Across
- 5. the energy that we use to make machines work
- 6. a place to go and see animals
- 7. a flat piece of glass that catches the sun's energy
- 9. a long, thick piece of wood used to hold up a roof
- 13. a place where fresh water comes out of the ground
- 15. to hurt something or do something bad to it
- 17. a word machines that scientists invent
- 18. a home which does not harm the environment
- 19. paper and other rubbish on the ground
- 20. a window in the roof to let light in
- 21. people grow vegetables in these in cold countries
- 22. the animals and birds living in a place
Down
- 1. a very large, round rock in space
- 2. what we put litter inside
- 3. to make a place clean again
- 4. use moving water to create energy
- 8. a place for people to leave rubbish
- 10. a way of making energy we can reuse
- 11. the world around us
- 12. something that makes water, air or land dirty
- 14. soft, wet earth
- 16. materials we can burn to make energy