Across
- 3. A room set up for scientific research.
- 5. If something dissolves in water.
- 6. Someone who promises that what they say is true.
Down
- 1. If something moved gently through the air.
- 2. A gas under pressure in a can that helps to spray the contents of the can.
- 4. A group of gases that surround a planet, such as Earth.