Universe

Edit Answers
123456789101112131415
Across
  1. 2. the force that attracts a body
  2. 6. a star that suddenly increases greatly in brightness because of a catastrophic explosion
  3. 7. similar in size to Mars, which is believed to have collided with Earth around four and a half billion years ago.
  4. 8. the natural satellite of the earth
  5. 10. metal that you find in the ground
  6. 12. Explosion of matter
  7. 13. small particles of matter floating through space
  8. 14. a celestial body moving in an orbit around a star.S
  9. 15. a small rocky body orbiting the sun.
Down
  1. 1. all existing matter and space considered as a whole; the cosmos.
  2. 3. a celestial object consisting of a nucleus of ice
  3. 4. a large body of matter in orbit around the sun or a star
  4. 5. A vast collection of matter held together by gravity.
  5. 9. Curved trajectory having another celestial body
  6. 11. a cloud of gas and dust in outer space
  7. 13. a fixed luminous point in the night sky