The Four Elements

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Across
  1. 3. These are the smallest part of matter?
  2. 5. Every visible thing is made up of earth, water, air, and ____.
  3. 7. Elements are changed by being pushed together and apart by forces of attraction and ______.
  4. 9. Like fire, our bodies use this chemical reaction called______.
  5. 10. A glass is never _____.
  6. 11. Formula H2O is the formula for ____.
  7. 12. If we didn’t have air inside of us we would ____ from the air.
  8. 14. Silica is more commonly known as ______.
  9. 15. Metal ores a pretty ______.
  10. 19. elements The ancient Greeks believed that everything was made up of ____ ____.
  11. 20. There is none to little change in temperature near _____.
Down
  1. 1. When matter is colder the atoms will be _____.
  2. 2. Air on earth is all made up of _____.
  3. 4. Plants give off oxygen during ______.
  4. 6. This type of atom can be spilt into smaller pieces.
  5. 8. When water travels through the body it carries chemicals,_____, and nutrients with it.
  6. 9. Water in oceans has absorbed about half of _____ making it into vegetation.
  7. 13. hundred and thirty five. nine The highest temperature on earth.(ex. number and number . number no dashes)
  8. 16. Oxygen and ____ are the most common elements in the crust of the earth.
  9. 17. outer core This layer was melted into a liquid from the heat of the earth.
  10. 18. In order to create a fire, it needs ___things.
  11. 21. Rocks, wood, metal, and ice are an example of what type of atom?