Material World

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Across
  1. 2. Ice will do this when it gets warm
  2. 3. The form of matter like juice or water
  3. 6. This happens when iron reacts with oxygen and water
  4. 7. A hard object like a rock is called a
  5. 9. Tiny building blocks of all matter
Down
  1. 1. A type of science that studies what things are made of
  2. 4. Everything around us is made of this
  3. 5. A type of matter that spreads out and has no shape
  4. 8. Water turns into this when it freezes
  5. 10. We breathe this in