Elements & Compounds

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Across
  1. 3. a compound with the chemical formula CO2
  2. 4. H is the symbol for this element on the Periodic Table
  3. 7. matter with a composition that is always the same
  4. 11. a pure substance made of only one kind of atom and found on the Periodic Table of Elements
  5. 13. matter with a composition that varies
  6. 14. anything that has mass and takes up space
Down
  1. 1. used to represent a compound and contains more than one capital letter
  2. 2. a substance made of two or more elements that are chemically joined together
  3. 3. an element with the symbol Cu on the Periodic Table and is present in coins
  4. 5. O is the symbol for this element on the Periodic Table
  5. 6. used to represent an element on the Periodic Table and contains one capital letter
  6. 8. a small particle that is the building block of matter
  7. 9. C is the symbol for this element on the Periodic Table
  8. 10. He is the symbol for this element on the Periodic Table
  9. 12. H2O is the chemical formula for __________