Across
- 2. Our sun is a yellow ______.
- 3. The _______ is responsible for the change of seasons on the Earth.
- 5. Mercury has been visited by two spacecrafts– Mariner 10 and ________
- 6. Saturn appears ______ in colour.
Down
- 1. The period of revolution increases as the distance of the planet from the sun _______.
- 3. The simplest method of identifying planets from stars is that stars ________
- 4. ______spins in the opposite direction of earth and most other planets.
- 5. __________ has no satellite of its own