chemistry

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Across
  1. 1. defined as the result of a force acting on a distance
  2. 4. the smallest identifiable unit of an element
  3. 7. a state of matter where atoms or molecules are packed close
  4. 8. anything that occupies space and has mass
Down
  1. 2. initial substances in a chemical reaction
  2. 3. a substance composed of tow or more elements
  3. 5. a state of matter where atoms or molecules are packed close to each other
  4. 6. substance that cannot be broken down into simpler substances