Space Jigsaw Reading Crossword

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Across
  1. 2. We have winter when the axis is tilted ____ from the sun
  2. 6. Gravity ___________ with distance
  3. 9. Sun scientists trek to __________ to study the sun in the summer
  4. 12. ___________ are the small, rocky objects left from the solar system formation
  5. 14. How long were days on early Earth? (two words, no space)
  6. 16. The Moon's gravitational pull causes _______
  7. 17. How much __________ objects contain influences gravitational attraction
Down
  1. 1. As the Sun spins it also _______
  2. 3. 4.6 billion years is the age of ... (three words, no spaces)
  3. 4. The planets orbit the Sun because of ________
  4. 5. Which planet's days are most similar in length to Earth's?
  5. 7. The gases at the ________ of the Sun rotate faster than the gases at the poles
  6. 8. Scientists think that gravity causes space to _______
  7. 10. An especially large collision caused the ... (two words, no space)
  8. 11. The Sun is a ball of glowing _____
  9. 13. _______ may have formed when a large meteor hit the Earth (two words, no space)
  10. 15. The axis tilt is the reason we have ...