Across
- 2. When mixed with air, ______ creates the energy to run an engine.
- 6. Helps feed the world's plants.
- 8. dihydrogen monoxide.
- 9. Gravity has this.
- 10. An all wheel drive, easy to use, do everything lawn mower.
- 11. A device used to cut the top off of small leaves.
Down
- 1. A big ball of swirling gas near earth.
- 3. Power to all four wheels.
- 4. a 2009 American science fiction superhero thriller film directed by Paul McGuigan
- 5. What plants do after photosynthesis
- 7. Hair is to humans as ______ is to dirt.