The document discusses the rotation and revolution of bodies in the solar system and how they cause natural phenomena. It states that: The Earth rotates on its axis every 24 hours, causing day and night, and revolves around the Sun every 365 days, causing seasons. The Moon rotates around the Earth every 28 days and is Earth's natural satellite. The Sun is a star that provides heat and light to the solar system and its spherical bodies rotate and revolve in predictable patterns.

1. Solar system
• Rotation : Earth moves on its axis every 24 hours
• This causes day and night
• Revolution : Earth moves around the sun every 365
days
• This causes season
• Moon : is a natural satellite rotates around the earth
every 28 days
• Sun , earth and moon are spherical
• Sun is a star that gives us heat and light

3. 1- The earth travels around the sun
2-The moon travels around the earth

4. 1- It is roughly spherical
2- It is a lot smaller than the earth

5. Why do we sometimes see only part of the
moon or the whole moon?
Because it is lit by the sun.

6. How many days does it take the moon to
rotate the earth ?
It takes 28 days

7. The moon orbits the earth, so it is called a
satellite of earth.
It’s a natural satellite.

8. The earth is roughly spherical in shape
The axis is an imaginary line through the
centre of the earth from the north pole to the
south pole.

9. How many hours does it take the earth to take one spin
on its axis?
It takes 24 hours and this causes day and night

12. Because the earth’s axis is tilted, we
get different seasons

13. The earth travels around the __________
The moon travels around the _________
The earth’s shape is _______________
The axis is an imaginary line passing through
the centre of the ___________
The earth spins _____ hours that causes day
and night.
sun
earth
roughly spherical
earth
24

14. The moon’s shape is________________
The moon goes around the earth every
_______ days.
We only see part of the moon that is lit by
the _________
The moon orbits the earth, so it is called
____________
roughly spherical
28
sun
a natural satellite

15. The earth’s movement
On its axis Around the sun
RevolveRotate
Makes day and night Makes seasons

16. The sun appears to move from east to the west

17. *The part of the earth facing
the sun has day time
*The other part is night time