Across
- 3. What planet is known as the red planet
- 4. What planet is famous for its big red spot on it
- 6. Can humans breathe normally in space as they can on Earth
- 7. Is the sun a star or a planet
- 8. What planet is closest in size to Earth
Down
- 1. Is the planet Neptune bigger than Earth
- 2. What planet is famous for the beautiful rings that surround it
- 5. The chemical element uranium was named after what planet
