Gravity Challenges

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Across
  1. 6. a laboratory
  2. 7. a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.
  3. 9. the force that pulls objects together
  4. 10. a celestial body moving in an elliptical orbit around a star.
Down
  1. 1. the eclipse that occurs when the moon moves into earth's shadow
  2. 2. the natural satellite of the earth
  3. 3. the eclipse that occurs when the moon goes in between the sun and the earth
  4. 4. the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution.
  5. 5. all existing matter and space considered as a whole
  6. 8. the planet we live on