science vocabulary

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Across
  1. 4. animals that eat other organisms
  2. 7. animals that eat other animals
  3. 9. the amount of space taken up by matter
  4. 10. a state of matter that has a fixed shape and volume
  5. 11. a change in the appearance of matter without actually changing the matter iself
  6. 13. anything that has mass and takes up space
  7. 14. one of the three main forms of matter
  8. 15. a state of matter that does not have a fixed shape or volume
  9. 16. a state of matter that has a fixed volume, but its shape changes to match the shape of its container
Down
  1. 1. organisms that make their own food
  2. 2. the amount of matter an object has
  3. 3. the amount of mass an object has in a known volume
  4. 5. all the populations of organisms and the nonliving things in an environment, and the interaction among them
  5. 6. all the organisms of the same species that live in the same area at the same time
  6. 7. a change in matter that can't be undone, such as burning
  7. 8. the measure of the amount of gravity acting on an object's mass
  8. 12. populations of different species that live in the same area at the same time