Chemical Reactions

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Across
  1. 4. An ending substance that is made during a chemical reaction.
  2. 6. The relative size of things.
  3. 7. a pure substance that cannot be broken down by any physical or chemical means into simpler substances
  4. 8. Something that is made of all the same atoms or groups of atoms.
Down
  1. 1. Something that can be observed about a substance, such as color, smell, or boiling point.
  2. 2. To change the order or position of something.
  3. 3. The basic unit of a chemical element.
  4. 5. A starting substance that is part of a chemical reaction.