Science crossword

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Across
  1. 5. the first element of the periodic table
  2. 7. number 106 on the periodic table
  3. 9. only made up of one type of atoms
  4. 10. made up of atoms chemically bonded together
Down
  1. 1. number 66 on the periodic table
  2. 2. made up of parts you can seperate
  3. 3. number 67 on the periodic table
  4. 4. used in cooking when you use the sifter
  5. 6. light up
  6. 8. number 5 on the periodic table