Science Vocab

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Across
  1. 1. A particle that makes up everything
  2. 4. a colorless, odorless unreactive gas that forms about 78 percent of the earth's atmosphere
  3. 6. An organism that eats other organisms to live and reproduce
  4. 7. the regions of the lithosphere, atmosphere, and hydrosphere
  5. 9. where matter moves from one form to another or from one place to another on the earth, and inside its ecosystems
  6. 10. An organism that breaks down dead organisms into nutrients
Down
  1. 2. eats both consumers and producers
  2. 3. A group of atoms together that make up a molecule
  3. 5. a nonmetallic element found more or less pure in nature
  4. 8. An organism that uses the energy of the sun as a source of energy