Across
- 2. - where something comes from or is obtained.
- 4. - devices that change a gas into a liquid by cooling it down.
- 7. - water moving continuously in a closed system.
- 9. - therefore; as a result of something mentioned.
- 11. - from where; indicating the origin or source of something.
- 12. - living things that grow in the ground and need water and sunlight to survive.
Down
- 1. - a large natural or artificial lake used as a source of water supply.
- 3. - to make something start working or operating.
- 5. - sent or passed on from one place or person to another.
- 6. - a device used to connect telephone calls manually.
- 7. - people who buy goods or services for their own use.
- 8. - quite large in size, amount, or importance.
- 10. - a set of levels or numbers showing the size or amount of something.