Across
- 3. rocks found in water feel like this
- 4. we used this to check the hardness of rocks
- 7. coast, mountain, forest and desert
- 8. some rocks have these cracks in them
- 11. strands that are found inside rocks
- 13. chop down trees to change the natural environment
- 17. healthy soil often has this in it
- 18. these animals put air holes in soil
- 20. these crushed things are often found in rocks
Down
- 1. these shiny, precious stones are found in rocks
- 2. some rock are ................ of years old
- 5. tiny blue/black stones found in driveways
- 6. these sometimes hatch out of eggs
- 9. these are very hard precious stones
- 10. a type of rock found in Sydney
- 12. you make this by mixing soil and water
- 14. hard rocks are found inside these
- 15. tiny white things found in soil
- 16. aluminium foil is an example of this
- 19. this makes good compost for soil