Across
- 4. utilizing heat from beneath the Earth’s surface to power electric generators.
- 5. transforming light energy from the sun into electricity via solar cells.
- 6. energy sources that are comprised of coal, oil and natural gas
- 8. using the mechanical energy of the wind to move turbines, which create electricity.
- 9. burning agricultural and constructional waste products to generate electricity.
Down
- 1. splitting radioactive atoms in a controlled environment and harnessing the heat energy released to power electric generators.
- 2. converting the mechanical energy of moving water into electricity via hydroelectric dams.
- 3. a greenhouse gas that is emitted into the atmosphere when fossil fuels are burned
- 5. a semiconductor that is used to build solar cells
- 7. a device made of groups of solar cells that converts light energy into electricity