Crossword Puzzle Unit 1. The Solar System.Online version Vocabulary unit 1. by Sonia Jiménez Ridruejo 1 The movement of the Earth around the Sun is 2 The Moon is a 3 The movement of the Earth on its axis is 4 There are four _____________ in one year. 5 Neptune is a 6 You can travel to the space in a 7 Holes on the Moon. 8 Saturn has got 9 Our planet is the 10 The Sun is a 11 The red planet. 2 5 9 11 4 7 6 1 8 10