1. The Earth
The Earth is round, like a ball, but it is also slightly squashed. We say that its shape is roughly spherical.
The Earth travels around the Sun once every year.

2. The Earth
The Earth also spins on its own axis. The axis is an imaginary line through the centre of the Earth from the North Pole to the South Pole. The Earth spins round once every 24 hours. This causes day and night on Earth.

3. The Earth It is day on the part of the Earth that is facing the Sun.
It is night on the part of the Earth that is facing away from the Sun.

4. The Moon
The Moon is roughly spherical, but it is a lot smaller than the Earth.
The Moon travels around the Earth. It goes round once every 28 days.

5. The Moon
We only see the part of the Moon that is lit by the Sun. So sometimes we see the whole Moon and sometimes we only see part of the Moon.

6. The Sun The Sun is a star and gives out heat and light.
It is roughly spherical in shape and is much, much bigger than the Earth.

7. What shape are the Earth, Sun and Moon?
Round and flat
Cuboid
Roughly spherical

8. Which is largest, the Earth, Sun or Moon?
The Sun
The Moon

9. How long does it take the Earth to travel once around the Sun?
24 hours
28 days
12 months

10. How long does it take the Moon to travel once around the Earth?
24 hours
28 days
12 months

11. How long does it take the Earth to turn once on its axis?
24 hours
12 hours
6 hours

12. Which part of the Earth is in daylight?
The part facing the sun
The part facing away from the sun
The part facing the moon

13. True or False
The sun rises in the east and sets in the west

14. Why does the Moon seem to change shape?
Because it gets bigger and smaller
Because we only see the part on the Moon that is lit by the Sun
Because sometimes it is cloudy

15. Imagine you were standing underneath a tree
Imagine you were standing underneath a tree. When would the shadow of the tree be shortest? 
At sunrise
At midday
At sunset

16. Why, in some parts of the world, are the days longer in the summer than in the winter? 
Because the Earth is tilted as it moves around the Sun
Because the Sun gets brighter in the summer
Because the Earth spins more slowly in the summer