Science EXTRA CREDIT Puzzle

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Across
  1. 2. a measure of how fast the particles of an object are moving
  2. 4. a group of crows
  3. 6. anything that takes up space
  4. 7. a measure of the gravitational force exerted on an object
  5. 10. a measure of the size of a body in 3-dimensional space
  6. 11. most popular Halloween costume according to google
Down
  1. 1. amount of force that is put on an area
  2. 3. pumpkins are this kind of food
  3. 4. a measure of the amount of matter in an object
  4. 5. country Halloween originated in
  5. 6. the curve at a liquid's surface
  6. 8. a group of witches
  7. 9. the amount of matter in a given volume