Forces crossword

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Across
  1. 2. The force of gravity pulling an object down, it is measured in
  2. 4. The force that pulls an object down towards the center of the
  3. 6. A type of friction but in the air.
  4. 7. When you put force on something to get it away.
Down
  1. 1. When you push an object up.
  2. 3. The force between two surfaces rubbing together
  3. 5. The amount of matter in an object,it is measured in grams.