Across
- 2. What planet has no atmosphere?
- 3. Which inner planet is the biggest?
- 5. Which inner planet has traces of water?
- 7. What is the distance between the Sun and Earth called?
- 8. Earth makes 1 revolution in a year, what is this year called?
- 9. What are non spherical objects orbiting in space between Mars and Jupiter?
- 10. What is made of ice, gas, and dust?
Down
- 1. Why is Venus hotter than Mercury?
- 4. What kind of planet is Earth?
- 6. Earth makes 1 rotation in a day, what is this day called?