Across
- 2. a visible collection of small water droplets in the air
- 6. the process of moving weathered rock or soil from one place to another
- 7. a complex carbohydrate that stores energy in plants
- 9. the regular rise and fall of water level of the ocean
- 10. a partially decomposed plant matter
- 11. a simple machine called an inclined plane
- 13. force such as the weight of an object
- 15. the turning of the earth
- 17. a mixture of water and substances that flow from laundries ,bathrooms and kitchens
- 18. describes chemicals that are dangerous to touch inhale or swallow
Down
- 1. change one form of energy into another
- 2. the outer layer of the earth
- 3. all of space
- 4. a device that makes a physical task easier
- 5. a complex combination of machines
- 8. a visual thinking tool that helps sequence thoughts
- 12. gears connected by a chain
- 14. a force which keeps objects floating
- 16. a complex mixture of the products of weathering and organic matter