Classwork # 4/Test Review

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Across
  1. 2. this system of measurement is preferred by scientists
  2. 5. these types of zeros never count
  3. 7. this number appears above the element symbol
  4. 8. a form of energy
  5. 10. negative particle that makes up atoms
  6. 12. meausures the accuracy of a measurement
  7. 13. these give numbers meaning
  8. 15. the net charge of an atom
Down
  1. 1. an easier way to write very big and very small numbers
  2. 3. this state of matter has particles that are close together
  3. 4. this substance is known as the universal system
  4. 6. something that has mass and volume
  5. 9. the ratio of the mass of an object to its volume
  6. 11. this particle appears in the nucleus
  7. 14. measure of the speed particles