Across
- 3. materials burned to make electricity from oil or coal.
- 6. garbage
- 7. soft wet earth
- 10. something makes water, air or land dirty.
- 11. a place for people to leave litter.
- 13. a window in the roof to let light in.
- 14. a long, thick piece of wood you use to hold up a roof.
- 15. the energy use to make machines work.
Down
- 1. the animals and birds living in a place.
- 2. a way to make electricity from wind, sun or water power.
- 4. a hole in the ground where you can get fresh water.
- 5. the large round objects that go around the Sun.
- 8. to hurt something or do something bad to it.
- 9. the world around us
- 12. To make a place clean.