PS (Matter) Vocabulary Practice (Part 1)

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Across
  1. 2. having to do with the toxicity of matter
  2. 5. a state of matter where the atoms bounce around
  3. 7. the positive or negative state of a particle
  4. 9. something proven in science, includes a math formula
  5. 11. the relationship between mass and volume of matter
  6. 12. anything in the universe that has mass and volume
  7. 13. a guess or prediction about what might happen
Down
  1. 1. the smallest piece of matter than can exist
  2. 3. thermal energy
  3. 4. preservation or protection of something
  4. 6. a substance made up of only one kind of atom
  5. 8. a negatively charged particle inside an atom
  6. 10. the amount of matter in an object (weight)