Across
- 4. The meaning of bio.
- 7. Any material made by plants and animals that we can convert into energy.
- 9. An energy resource that can be replaced or never runs out.
- 10. The materials we use from nature such as air and water to make things we need.
- 12. The careful use of natural resources so that they can last as long as possible.
Down
- 1. These include oil, coal, and natural gas that were formed from the remains of living things millions of years ago.
- 2. Type of energy that is harnessed from the sun.
- 3. Type of energy produced by moving water.
- 5. Type of energy produced by heat within the Earth's crust.
- 6. The meaning of hydro.
- 8. The meaning of geo.
- 11. Natural resources are found in____________.
