Chemistry

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Across
  1. 3. - represents a compound; represented by symbols and subscripts
  2. 5. - may increase or decrease during a chemical change (hot or cold)
  3. 6. - pure substance; combines 2 or more elements and is represented by a chemical formula
  4. 8. - a pure substance that cannot be broken down into another substance
  5. 9. - bubbles produced during a chemical reaction
  6. 10. - anything that has mass and takes up space
Down
  1. 1. - represents the name of an element; written with a capital letter and sometimes a lower case letter
  2. 2. - # after chemical symbol in a formula; tells you the number of atoms present for each element in a formula
  3. 4. - the smallest particle of an element
  4. 7. - a solid substance that appears during a chemical reaction