Science Crossword Puzzle

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Across
  1. 2. Rest or move near the surface of a liquid without sinking
  2. 7. To remain or near a particular level
  3. 8. To move from a lower position to a higher one
  4. 10. A force that attracts a body towards the center of the earth or any physical body with mass
  5. 12. A push or pull that acts on an object
  6. 14. Physical substance in general
  7. 16. The real physical matter of which a thing consists and which has a solid presence
  8. 17. A gas or a liquid
  9. 18. The amount of mass contained in a given volume
  10. 20. Most dense state of matter
Down
  1. 1. The tendency of an object to rise or sink due to density differences with its surroundings
  2. 3. The measurement of how hot or cold something is
  3. 4. A measurement of how much matter makes up an object
  4. 5. The amount of space a substance or object occupies
  5. 6. The quantity of matter contained by a body giving rise to a downward force
  6. 9. Least dense state of matter
  7. 11. More dense than gases less dense than solids
  8. 13. a material thing that can be seen and touched
  9. 15. Greek mathematician and inventor that invented an important principle about buoyancy
  10. 19. To go down below the surface of a liquid