Vocabulary Year In Review Terms 1-18

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Across
  1. 2. A visible rubbing force that acts to slow the motion between two touching surfaces
  2. 5. A pure substance made of more than one kind of atom bonded together
  3. 6. A day in spring and in autumn when the days and nights are equal in length
  4. 7. The smallest whole particle of matter
  5. 10. _____force;Any process that builds up Earth's crust
  6. 13. Pure substance made of only one kind of atom
  7. 15. The pull of any object with mass; an invisible force
  8. 16. All nonliving things in the ecosystem
  9. 18. Rock formed when sediments fill in decomposed plants and animals
Down
  1. 1. ____ tilt The tipping of Earth on its axis
  2. 3. The process that occurs when a gas changes into a liquid
  3. 4. The Earth itself
  4. 8. capacity The most organisms an environment can support
  5. 9. All the gases surrounding Earth
  6. 11. Tell how or why
  7. 12. All organisms living together in an area AND the environment they live in
  8. 14. A type of cell that has a nucleus that is enclosed by a membrane
  9. 17. The solid outer layer of Earth. Contains soil and solid rock