Chemical Reactions

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