matter choice board

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Across
  1. 1. quantity of matter in an object.
  2. 5. the mass of a substance per unit volume.physical property
  3. 6. consisting of parts or elements that are all the same
  4. 8. A basic part of a whole.
  5. 10. A small particle with a negative charge that is found in all atoms.
  6. 12. property a characteristic of a particular substance that can be observed in a chemical reaction.
  7. 15. tiny particles inside the center of an atom.
  8. 17. a material that is made up of a combination of atoms bonded together.
Down
  1. 2. The smallest part of a substance that cannot be broken down chemically
  2. 3. the amount or quantity of heaviness or mass; amount a thing weighs
  3. 4. a word that signifies diversity
  4. 7. any thing that tacks up space
  5. 9. property any of a material's properties that becomes evident during, or after, a chemical reaction
  6. 11. a subatomic particle that is found in all atoms.
  7. 13. numbers The number of protons in the nucleus of an atom determines an element's atomic number.
  8. 14. the amount of space occupied by any three-dimensional solid.
  9. 16. unmixed with any other matter.