physical science

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Across
  1. 4. a state of matter that canflow and take the shape of a container
  2. 6. the degree or compactness of a substance
  3. 8. the quality of being hot
  4. 10. thing that is composed of two or more separate element
  5. 12. energy- a property of moving objects or particles
  6. 13. at or near boiling point
  7. 14. one object in space takes around another one
  8. 15. force that attracts a body towards the center of the earth
Down
  1. 1. variable- variable whose variation does not depend on that of another
  2. 2. the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
  3. 3. the ability of material to ignite and burn causing fire combustion
  4. 5. the substance formed as a result of a chemical reaction
  5. 7. energy in the international system of units
  6. 9. subatomic particles with charge of negative energy
  7. 11. the basic unit of a chemical element