Across
- 4. solid changing into liquid
- 5. material that allows electricity to flow
- 6. living and nonliving things interacting together
- 9. a force that slows motion between surfaces
- 10. matter that spreads out to fill a space
- 13. material that blocks electricity
- 15. matter with a definite shape and volume
- 17. the movement of one object around another object in space
- 19. the place where an organism lives
- 21. the force pulling objects toward Earth
- 23. gas changing into liquid
- 26. preserved remains or traces of ancient life
- 27. substances combined without chemically joining
- 28. movement of weathered material
- 29. dropping of sediments in a new place
- 30. an organism that breaks down dead matter
- 32. breaking down rocks into smaller pieces
Down
- 1. energy of motion
- 2. rock formed from cooled magma or lava
- 3. the amount of salt dissolved in water
- 7. rock changed by heat and pressure
- 8. matter with a definite volume but no fixed shape
- 9. a push or pull
- 11. an organism that eats other organisms
- 12. stored energy
- 14. a mixture where one substance dissolves in another
- 16. a trait that helps survival
- 18. liquid changing into gas
- 20. liquid changing into solid
- 22. rock formed from compacted sediments
- 24. the tiny building block of matter
- 25. an area of land where all water drains into the same river, lake, or ocean
- 31. anything that has mass and takes up space