Solar System Sort

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Across
  1. 3. A scientist who studied an expanding universe
  2. 4. The planet where we live
  3. 6. Objects that move around planets
  4. 9. Icy space rocks with long, bright tails
  5. 10. The hot star in the center of the solar systen
  6. 12. The planet with rings
  7. 14. The path soemthing takes around a planet or star
  8. 16. A very hot planet near Earth
  9. 17. The event when the universe began
  10. 18. Scientist who studied galaxies moving apart, names a telescope
  11. 19. Rocky objects that move around the sun
  12. 21. The sun and everything that moves around it
  13. 23. The force that pulls things down
  14. 24. A planet that spins on its side
  15. 25. A cold, blue planet far from the sun
Down
  1. 1. A scientist who helped explain the Big Bang
  2. 2. The red planet
  3. 5. The planet closest to the sun
  4. 7. Ideas that explain things using evidence
  5. 8. Famous scientist who studied space and time
  6. 11. The big rock that orbits the sun
  7. 13. A scientist who studies space
  8. 15. The biggest planet in our solar system
  9. 20. The galaxy where our solar system is
  10. 22. The stuff everything is made of