Across
- 3. energy depends on relative position
- 4. change that keeps its chemical composition and properties
- 8. the sun's is converted into and stored
- 9. machine that includes a lever, pulley, wheel and axle
- 10. energy of motion
- 12. matter cannot be created or destroyed
- 16. can be separated by physical means
- 17. process that wears away earth's surface
Down
- 1. what is transported during erosion
- 2. driving force behind erosion
- 3. carried on by green plants containing chlorophyll
- 5. change when new substances are formed
- 6. the distance or speed required to do work
- 7. characteristics such as color, odor, density, hardness
- 11. can be affected by temperature, stirring and pressure
- 13. an example of a physical change
- 14. an example of a chemical change
- 15. stored energy