Earth

EARTHPlace for Living Things

By : - Fatma Hanani (08)

- Indra Dwi Kurniawan (13)

- Luthfiana Farida (15)- Nabila Noorhafizah

(17)

What is earth?

How earth form?

Structure of earth

Earth’s Rotation

Earth’s Revolution

Do you know?

What is earth?

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

Orbital period = 365,26 daysTemperature = -70˚ - 55˚C Rotation period = 23 hours 56 minuteAverage distance from the sun = 149,6 millions kmDiametre = 12.760 kmSatellite = moon

Structure of

Crust

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.

Mantle

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

Outer core

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.

Inner core

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.

Earth’s Rotation

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.

Rotary motion of the earth around the axis.

Earth’s Revolution

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

Movement of earth around the sun.

Sunrise

Sunset

• Sometimes the night feel longer than the day, even the opposite.

• And where’s the day and the night have a different time.

Thank You