The document discusses the solar system and its components. It describes the sun as the center of the solar system, around which 9 planets revolve in elliptical orbits to avoid collisions. The planets rotate on their axes while revolving around the sun. All planets rotate counter-clockwise except Venus and Uranus. It also notes characteristics of the planets like their relative distances from the sun and effects of Earth's rotation like day and night. Web links for further reading are provided along with an activity sheet related to planets.

1. SCIENCE
YEAR 4
INVESTIGATING THE EARTH AND THE UNIVERSE

7. SUN

8. What can you see in this slide?

9. THE SOLAR SYSTEM
Consist of :
1. The Sun
2. 9 planets
3. Natural satellites
4. Asteroids

11. THE SUN
• Is the center of the Solar System.
• It is in the middle of the Solar
System and there are 9 planet
which revolve around it.
• It is a star that able to give us
light and warmth.

12. MERCURY
9 PLANETS
VENUS
SUN IN THE SOLAR SYSTEM
EARTH
MARS
JUPITER
SATURN
URANUS
NEPTUNE PLUTO

13. PLANET
• Each planet revolves around the Sun in its
own elliptical orbit.
• The orbit ensures that the planets will not
collide.
• While revolving around the Sun, the
planets also rotate on their axes.
• All planets, except Venus and Uranus
rotates anti-clockwise.
• Venus rotates clockwise while Uranus
rotates from top downwards (on its side).

14. • The nearest planet ( Mercury ) has the
smallest orbit.
• The furthest ( Pluto ) has the biggest orbit.
• The rotation of the Earth in the west to
east direction causes
a) the formation of day and night
b) the Sun rising in the east and setting
in the west.

15. The
Website…
• http://masvanessa.tripod.com/
sistemsuria.html
• http://www.astronomes.com/m1_solaire/
m100_main.html
• http://www.sabah.edu.my/ptc026.wcdd/
• http://www.geocities.com/CollegePark/
Union/6728/bab23.html

16. ACTIVITY SHEET
http://www.sabah.edu.my/ptc026.wcdd/

17. MERCURY VENUS AND EARTH
EARTH AND EARTH
EARTH AND EARTH
MARS JUPITER SATURN URANUS
NEPTUNE PLUTO
Version:
London Bridge Is Falling Down

18. THAT’S ALL,
THANK YOU
SEE YOU, BYE…
JULAYNAH
HADZIR