Across
- 3. the change of state from liquid to solid
- 4. the ratio of solute to solvent in a solution
- 6. a molecule that absorbs red and blue light and reflects green light in plants
- 8. to soak in
- 10. a community of organisms interacting with each other and with the nonliving environment
- 12. the process of a substance becoming incorporated uniformly into another
- 14. an organism that breaks down dead plant and animal material
- 16. the layer of gases surrounding Earth
- 17. the change of state from liquid to gas
- 18. a push or pull
- 19. a state of matter that has no definite volume or shape
Down
- 1. the change of state from gas to liquid
- 2. to act upon one another
- 5. the solid, rocky part of Earth’s crust
- 6. the transfer of energy from one object to another by contact
- 7. to go down in value
- 9. an organism that eats other organisms
- 11. a solution containing little solute
- 13. a system of interacting living organisms on Earth
- 15. to go up in value