Across
- 4. underlying geological or organic matter
- 5. the breaking down of rocks and minerals caused by chemical reactions
- 7. when surface materials are worn away
- 9. breaking rocks into smaller pieces without changing what its made of
- 10. when rocks turn into one another over millions of years
Down
- 1. positive end and negative end
- 2. rocks that transform after extreme heat and pressure without melting
- 3. type of rock formed at the Earth's surface of tiny other rocks
- 6. the arrangement of natural and artificial physical features on land, including its surface shape
- 8. formed when molten rocks cool