1. THE UNIVERSE

2. Astronomical bodies

3. The Solar System

4. The Sun

5. The planets

6. Our planet

7. The Earth’s movement
• The Earth is moving around the Sun.
• This movement is called an orbit.
• The Earth takes about 365
days to complete the orbit.
This is a year

8. The Earth’s movement
• Orbit causes the seasons.
• When a part of the Earth receives more sunlight and
heat it is summer.
• In the other part
it is winter.
• Autumn is between
summer and winter.
• Spring is between
winter and summer.