Matter

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Across
  1. 1. a substance made of atoms of more than one element bound together.
  2. 4. force with which gravity pulls on a quantity of matter
  3. 5. anything that has mass and occupies space
  4. 6. the smallest particle that has the properties of an element.
  5. 9. a value written as a simple number multiplied by a power of 10.
  6. 10. any matter that has a fixed composition and definite properties.
Down
  1. 2. combination of more than one pure substance.
  2. 3. the chemical symbols and numbers indicating the atoms contained in the basic unit of a substance.
  3. 7. a measure of the quantity of matter in an object
  4. 8. measure of space