presentasi tentang bumi

1. EARTH
Place for Living Things
By :
- Fatma Hanani (08)
- Indra Dwi Kurniawan (13)
- Luthfiana Farida (15)
- Nabila Noorhafizah (17)

2. What is earth?
How earth form?
Do you know?
Structure of earth
Earth’s Rotation
Earth’s Revolution

3. The only one
planet that has life
on it, because
there is oxygen.

5. Orbital period = 365,26 days
Temperature = -70˚ - 55˚C
Rotation period = 23 hours 56 minute
Average distance from the sun = 149,6
millions km
Diametre = 12.760 km
Satellite = moon

6. Structure of

7. Crust is the outer layer of earth that can be
place by plants, animals, human, and other
living things for life.
Consist of thin rock especially quartz.

8. Mantle is the thickest layer of the Earth.
Consist of silicate rocks that are rich in iron
and magnesium.

9. Outer core of the Earth is a liquid layer about
3,000 kilometers thick composed of iron and
nickel that place above the solid inner core
and below its mantle.

10. Inner core is a primarily solid ball about
1,220 km in radius.
Consist of an iron–nickel alloy, and may have
temperature similar to the Sun's surface.

11. Rotary motion of the earth around the axis.
Changes between day and night.
The time difference.
Sun and the other celestial objects appear
to move from the east to the west.
A bulge around the equator and an oblate
around the poles.

12. Movement of earth around the sun.
Changes is season.
Changes in the length of day and night.
The apparent motion of the sun.
The appearance of different constellations
every month.

15. Sunris
e
Sunset

18. • Sometimes the night feel longer than the day,
even the opposite.
• And where’s the day and the night have a
different time.