Physical Science

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Across
  1. 4. measure of space
  2. 10. formula the chemical symbols and
  3. 11. a pure substance consisting only of atoms that all have the same numbers of protons
  4. 12. all of the properties of that substance
Down
  1. 1. Notation a value written as a simple number multiplied by power of 10
  2. 2. the smallest particle that had properties of an element.
  3. 3. indicating the atoms contained in the basic unit of a substance
  4. 5. the smallest unit of a substance that
  5. 6. is anything that has mass and takes up space
  6. 7. chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds
  7. 8. a measure of the quantity of matter in an object
  8. 9. force with which gravity pulls on a quantity of matter