space

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Across
  1. 1. -a imaginary pole that earth spins on.
  2. 4. -the time a planet spins on its axis.
  3. 7. -a planet that orbits a star outside our solar system.
  4. 10. -a collection of stars that make a pattern in the sky.
Down
  1. 2. -change of temperature during the year.
  2. 3. -one object that circles a other object.
  3. 5. -any large objects that orbit a star in the solar system.
  4. 6. -lumps of rock orbiting the sun from when the solar system was made.
  5. 8. -collection of stars held together by gravity.
  6. 9. - the time it takes for a planet to orbit the sun.