Across
- 1. ……………………… is made from biological material and can be used in cookers and engines.
- 4. Coal is a type of ……………… fuel.
- 8. A solar thermal system converts ……………… energy directly into heat.
- 9. Solar energy is an example of a …………………… resource.
- 10. …………………… turbines can be placed in the ocean to capture the energy of strong, consistent winds.
Down
- 2. Some visible features of ………………………………… energy are volcanoes, hot springs and geysers.
- 3. Humans need ……… to live.
- 5. A …………………… is something that needs to consumed to gain any benefit.
- 6. A …………………………… dam can generate electricity from falling water.
- 7. ……………… is one of the most common non-renewable sources of energy.