Space crossword #1 (level 2)

Across

3. 3 The biggest planet. (7 letters)
6. 6 It shines in the night sky. (4 letters)
7. 7 It goes around a planet. (9 letters)

Down

1. 1 The planet closest to the Sun. (7 letters)
2. 2 Path around a planet or a star. (5 letters)
4. 4 Round hole on the Moon. (6 letters)
5. 5 Ball of ice with a long tail. (5 letters)
7. 7 It lights and warms us. (3 letters)