Unit 1 Review

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Across
  1. 1. The amount of space an object or substance occupies
  2. 6. The smallest particles in the universe, nothing is smaller
  3. 9. A state of matter where the atoms are free to move and fill up a space
  4. 11. A mixture where you can see each individual element
  5. 12. A state of matter where the atoms are rigid and immobile
  6. 14. A synonym of float, the upward force which pushes the object towards the surface of the liquid
  7. 15. the temperature at which a liquid becomes a solid
  8. 16. A substance that is made of only one kind of matter
  9. 17. A state of matter where the atoms are fluid and mobile
Down
  1. 2. When atoms join together they form these structures
  2. 3. A substance that is made of 2 or more types of matter
  3. 4. The temperature at which a liquid becomes a gas
  4. 5. The amount of matter in an object
  5. 7. Something that exists, has mass, and occupies space
  6. 8. A measurement of how tightly packed an object's atoms are
  7. 10. The temperature at which a solid becomes a liquid
  8. 13. A mixture where all the elements are mixed together and cannot be seen