Chemistry

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Across
  1. 3. Mass per unit volume.
  2. 4. A hazard that can cause blindness if directed into the eye.
  3. 5. Distance divided by time.
  4. 8. Which of Newton's Laws states that a non-zero resultant forces causes an acceleration.
  5. 9. If objects obey the principle of moments, they are..?
  6. 10. Unit of frequency.
Down
  1. 1. The variable that is always along the x-axis of a graph.
  2. 2. An atom becomes this when it loses an electron.
  3. 3. Terminal velocity of moving objects depends on their..?
  4. 6. Lens that caves inwards.
  5. 7. What is done when a force moves an object?