Across
- 5. Planet known as the Evening Star
- 6. There are __________ on Venus.
- 8. Venus and ___________are the only two planets that do not have moons.
- 9. One of Mars' moons.
- 10. The surface of Mercury looks most similar to the surface of the_______.
Down
- 1. Known as the Red Planet
- 2. It takes one year for the earth to___________ around the sun.
- 3. Terrestrial planets
- 4. The inner planets are characterised as solid and________.
- 7. The largest volcano in the solar system is called______________ and is found on Mars.
