Science Chapter 11 Crossword

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Across
  1. 2. smallest particle that has properties of an element
  2. 4. is the smallest unit of a substance that has all properties characteristic of that substance
  3. 6. substances are not uniformly mixed
  4. 7. a substance that cannot be broken down into simpler substance
  5. 8. chemical symbols and numbers indicating the atoms contained in the basic unit of a substance
  6. 10. combination of more that one pure substance
Down
  1. 1. mixing occurs between individual units
  2. 3. any matter that has a fixed composition and define proerties
  3. 5. anything that has mass and occupies space
  4. 9. a substance made of atoms of more than one element bound together