Natural Resources\

6. __________ Energy – Heat energy from within the Earth.
7. The process of converting waste materials into new materials and objects.
10. The wise use and protection of natural resources to prevent depletion.
13. __________ Resource – A material found in nature that is used by living things (e.g., water, soil, minerals, forests).
14. Using resources in a way that meets current needs without compromising future generations.
15. __________ Resource – A resource that cannot be replaced within a human lifetime (e.g., coal, oil, natural gas).

1. Energy produced from moving water.
2. __________ Energy – Energy from the sun that is converted into thermal or electrical energy.
3. The presence or introduction of harmful substances into the environment.
4. Organic material that comes from plants and animals and can be used as a renewable energy source.
5. __________ Fuels – Energy-rich substances formed from the remains of ancient plants and animals (e.g., coal, oil, natural gas).
8. The process by which soil and rock are removed from the Earth's surface by wind or water flow.
9. An area of land where all the water drains into a common body of water.
11. __________ Resource – A resource that can be replaced naturally in a short period of time (e.g., sunlight, wind, water, trees).
12. The natural environment where an organism lives and grows.