Across
- 2. You need at least two of these to make a molecule.
- 5. Water shouldn’t be drunk if it is———-.
- 8. The layer of gases surrounding earth.
- 11. An organism that lives on or inside another organism.
- 12. A long time with no rainfall.
Down
- 1. This is formed when two or more atoms join together.
- 3. Water that trickles down hillsides.
- 4. Water vapour is a form of water in its ——— state.
- 6. So small you can only see it through a microscope.
- 7. The process of changing a liquid to a gas.
- 9. A spot in a desert where water is found.
- 10. A human made body of water.