Question 1.16   Give two reasons why scientist thought the Earth was at the centre of the universe. (2)

Question 1.4.1   True or false: The Earth orbits around the Sun. (1)

Question 1.5   Explain in your own words what a satellite is. (1)

Question 1.4.4 True or false: The gravity of the Sun keeps the planets in their orbits. (1)

Question 1.1   Roughly what shape are the Earth, Sun and Moon? [ans1] (1)

Question 1.6.2   How long does it take for the Moon to go around the Earth once? [ans1] (1)

Am I tired?

Question 1.4.3   True or false:   The Earth is a satellite of the Moon. (1)

Do I want to go back to bed?

Question 1.11   Why, in some parts of the world, are days longer in the summer than in winter? (2)