Unit 1 Review

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Across
  1. 1. It has a negative charge and makes up parts of an atom.
  2. 5. Molecules in a solid move at a ________ rate of speed.
  3. 6. A phase change that occurs as a gas turns into a solid.
  4. 10. A state of matter that has no definite shape and no definite volume.
  5. 11. A phase change that occurs as a solid turns into a gas.
  6. 13. Molecules in a gas move at a ________ rate of speed.
  7. 14. Will change based on if an object is on Earth or on the Moon.
  8. 16. A phase change that occurs as a liquid turns into a solid.
  9. 17. A phase change that occurs as a gas turns into a liquid.
Down
  1. 2. A state of matter that has a definite volume and no definite shape.
  2. 3. It has a positive charge and makes up parts of an atom.
  3. 4. Known as the amount of matter in a given space of an object.
  4. 5. A state of matter that has a definite shape and a definite volume.
  5. 7. A phase change that occurs as a liquid turns into a gas.
  6. 8. Known as the amount of matter in an object.
  7. 9. Known as the amount of space in an object.
  8. 12. A phase change that occurs as a solid turns into a liquid.
  9. 15. It has a neutral charge and makes up parts of an atom.