Across
- 2. ___ materials are nonliving resources in the Earth
- 3. ________ is the mineral in a pencil
- 5. _________ resources never run out of itself
- 6. ____ ore is used to make steel
- 8. _________ with lots of natural resources are not always rich
- 10. _______ resources include oil and coal
Down
- 1. ____________ resources that can run out of itself
- 4. _____ power, wind and water are examples of renewable energy
- 7. __________ materials are living resources on top of the Earth
- 9. _______ resources are needed by humans and for modernization