Science

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Across
  1. 5. - The movement of an object around another object
  2. 7. - A measure of the force of gravity on an object
  3. 8. - Either of the two days of the year on which the sun reaches its greatest distance north or south of the equator
  4. 10. - A system of organized time that defines the beginning, length, and divisions of a year
  5. 13. - The tendency of an object to resist a change in motion
  6. 14. - An imaginary line that passes through a planet’s center and its north and south poles, about which the planet rotates.
Down
  1. 1. - The attraction force between objects: the force that moves objects downhill
  2. 2. first law of motion - The scientific law that states that an object at rest will stay at rest and an object in motion with a constant speed and direction unless acted on by a force
  3. 3. - A push or pull exerted on an object
  4. 4. - The spinning motion of a planet on its axis
  5. 6. of universal gravitation - The scientific law that states that every object in the universe attracts every other object
  6. 9. - The path of an object as it revolves around another object in space
  7. 11. - Either of the two days of the year on which neither hemisphere is tilted towards or away from the sun
  8. 12. - The amount of matter in an object