Science

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Across
  1. 3. a character that is set slightly below or above the normal line
  2. 6. A chemical substance is a form of matter having constant chemical composition and characteristic properties
  3. 7. a way of presenting information about the chemical proportions of atoms
  4. 9. the species formed from chemical reactions.
  5. 10. measure of the quantity of moles of a product
Down
  1. 1. serves to either support or counter a scientific theory or hypothesis
  2. 2. made up of a nucleus, protons and electrons.
  3. 4. way of presenting information about the chemical proportions of the atom
  4. 5. pure substance consisting only of atoms that all have the same numbers of protons in their nuclei.
  5. 8. an electrically neutral group of two or more atoms held together by chemical bonds