Lesson 3 Check

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Across
  1. 3. The temperature at which a liquid changes to a solid.
  2. 4. During chemical changes, some matter is lost as a _____.
  3. 7. In a _____ change, no new substance is created.
  4. 8. This process is used to improve the durability and appearance of metal objects.
  5. 11. The law of _____ of matter states that matter stays the same.
Down
  1. 1. The _____ point of water is 212 degrees Fahrenheit or 100 degrees Celsius.
  2. 2. The point at which a solid changes to a liquid.
  3. 5. Physical changes happen when matter changes color, _____, or size.
  4. 6. When particles gain energy, they start to move _____.
  5. 7. Changing the state of matter is also called a _____ change.
  6. 9. In a _____ change, new properties are produced.
  7. 10. This is produced when water causes a metal to develop a reddish-brown color.