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Planets and satellites – CBSE Class VI Social Science lesson

Planets and satellites – CBSE Class VI Social Science lesson by by Soma Mukhopadhyay for SuccessCDs Education

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About this Video:

PLANETS AND SATELLITES

It’s the 3rd planet from the sun and 5th largest and home to millions of species.

The earth is at a distance of 150 million km from the sun.

It takes 365 days for the earth to travel round the sun.

The earth’s extensive magnetic field and the atmosphere protects us from the harmful radiation of the sun and other stars.

The earth’s atmosphere protects us from meteors, most of which known us before they strike the surface.

The earth’s axis is tilted by 23.450 because of which we have the seasons-

Summer, Winter, Autumn and Spring.

The earth revolves around the sun at a speed of 30 km/sec.

The temperature of the earth ranges from 1270F to 1360F.

The earth has only one Satellite called the moon.

The earth’s shape is like a sphere but slightly flattened at the poles and bulges at the equator.

It’s the only planet which has water in all its three states- solid, liquid and gas.

MERCURY

Closest to the sun and the smallest.

It takes only 88 days to complete one revolution.

VENUS

It is the second planet from the sun.

It’s also known as the morning star and evening star.

It’s similar in size, mass, density and volume with earth but it has no oceans and is surrounded by a heavy atmosphere composed mainly of carbon dioxide and water vapour.

MARS

It’s the fourth planet from the sun and also called the Red Planet. It’s atmosphere is made up of carbon dioxide with small amounts of other gases.

JUPITER

The fifth planet from the sun is the largest planet in the solar system surrounded by an atmosphere composed of hydrogen and helium.

SATURN

It’s the sixth planet from the sun and the second largest and the most beautiful.

It’s the only planet which is less dense than water.

The rings around this planet make it the most beautiful.

URANUS

It’s the 7th planet from the sun and the 3rd largest.

It rotates about its axis once every 17 hrs and 14 minutes.

It has 27 moons.

NEPTUNE

It’s the outermost planet and it orbits the sun every 165 years.

It has 13 moons.

SATELLITES

Earth has a natural satellite called MOON.

Mercury has no moon.

Venus has no moon.

Mars has 2 moons.

Jupiter has 67 known moons.

Saturn has 62 moons.

Uranus has 27 moons.

Neptune has 13 moons.

ARTIFICIAL SATELLITE

There are many man made satellites too, usually closer to the earth.

The soviet SPUTNIK satellite launched on Oct 4, 1957 was the first to orbit the earth.

for Other Social Studies Lessons Book mark the CBSE Social Studies Playlist here http://goo.gl/RP9NA

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