Chemical Change

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Across
  1. 5. the relative size of things
  2. 7. something that can be observed about a substance, such as color, smell, or boiling point
  3. 9. an object, diagram, or computer program that helps us understand something by making it
  4. 10. a substance that is added to soil to help plants grow
  5. 12. something that is made of all the same atoms or groups of atoms
  6. 13. or easier to see
  7. 16. an ending substance that is made during a chemical reaction
Down
  1. 1. formula letters and numbers showing the types and number of atoms that repeat to make
  2. 2. the tiny pieces that all matter—all the stuff in the world—is made of
  3. 3. able to cause damage
  4. 4. a substance
  5. 6. structure: a structure formed by repeating groups of atoms linked together in a large
  6. 8. point the temperature at which a substance changes from the liquid phase to the gas phase
  7. 11. to change the order or position of something
  8. 14. a group of atoms joined together in a particular way
  9. 15. a starting substance that is part of a chemical reaction