Matter

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Across
  1. 3. a shape that that all the particles are compact together
  2. 6. 2 or more atoms connected by a chemical bond
  3. 7. variety of particles made together
  4. 10. a substance made by mixing more than one substance together
  5. 12. carbon, hydrogen, fluorine, chlorine, helium
  6. 13. 2 or more different elements combined
  7. 14. a substance or matter in a state in which it will expand freely
  8. 15. a substance that is made on particles of one kind
Down
  1. 1. water-less compact than a solid
  2. 2. Are those that can be observed without changing their identity
  3. 4. Examples are burning wood, souring milk, rusting of iron
  4. 5. ____________ can result of a reaction in a substance
  5. 8. Examples are chopping carrots, ice melting, boiling water
  6. 9. extremely small particles that are basic building blocks
  7. 11. a form of matter in which many of the electrons wander around freely