Across
- 5. a type of planet is distinct from the gas giants, which are the other type of planet in the Solar System. The planets are divided evenly between terrestrial planets and gas giants.
- 7. What is the force that attracts a body toward the center of the earth, or toward any other physical body having mass?
- 9. Is Mars an inner planet?
Down
- 1. How many days is a year in Mercury have in Earth days?
- 2. What is Earths atmosphere made out of?
- 3. Which planet is the smallest terrestrial planet?
- 4. What is Venus' atmosphere mostly made out of?
- 6. What was the first probe that visited Venus?
- 8. What planet has no moons?