4 Sketch a diagram showing the positions of the Sun, Earth and Moon during the Last Quarter phase of the Moon.
5 How many times bigger is Earth’s mass than the Moon’s mass? Use the planetary fact sheet given in Chapter 7 in the textbook (pp. 90–91) to find the mass of the Earth. The mass of the Moon is given in Chapter 23 of the textbook (p. 273). Give your answer correct to one decimal place.
6 Describe why we always see the same side of the Moon.