Energy

2. Non-renewable energy sources formed deep within the Earth's crust from the buried remains of plants and animals over millions of years
5. To save or use energy wisely
7. A black solid fossil fuel mined from the earth
9. The fuel used in nuclear power plans
11. Atmospheric gases that trap heat from the Earth’s surface, acting like a blanket to keep the planet warm
13. Energy sources that can be replaced naturally
14. Energy from organic materials like wood and plants
15. Energy from the sun collected by panels
16. Energy produced by moving water

1. Energy captured by large turbines and blades
3. Heat energy from deep inside the Earth
4. A liquid fossil fuel also known as petroleum
6. Colorless odorless gas used for electricity, heating, and transportation
8. Energy sources that will eventually run out
10. A machine that spins to generate electricity
12. Substance- primarily greenhouse gases and pollutants- released into the atmosphere from human activities