Across
- 1. The Earth is made of ________ and water
- 5. Gold, silver and copper are ____________, found in the ground and rocks.
- 10. Rocks and soil are natural _________
- 11. A plain is _________ land.
- 12. Plants grow in the soil and ___________ can live in it too.
- 13. A _________ is very steep land.
- 14. Someone who studies rocks is called a ____________.
- 16. __________ and trucks and airplanes give off harmful materials into the air.
- 17. A ___________ is water than flows through the land.
- 19. People use __________ for drinking, bathing, cooking food and swimming in!
- 21. To help save Earth's resources, we can use less. ________ means to use less.
Down
- 1. Water than has land all around ir is called a __________.
- 2. A natural resource is a useful thing that comes from ___________
- 3. __________ is made of dead things, it helps plants to grow.
- 4. When rocks break apart and change we call this ______________.
- 6. Land is an _______________ natural resource.
- 7. Turning old things into new things is called _______________.
- 8. People and animals need to _________ air. Plants need it too.
- 9. __________ is tiny pieces of broken rock.
- 11. A palaeontologist studies _________________.
- 13. ___________ is soft and sticky and most plants don't grow in it.
- 15. ______________ is when wind or water moves soil and rocks.
- 18. The _________ of plants can stop erosion by keeping soil in place.
- 19. Moving air is called _______.
- 20. We can __________ things, which means use things again.