Group : 4

Crescent moonHalf moon

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Crescent moonFull moonNew moon

The various shapes of the bright part of the moon are called phases of the moon.

The moon doesn’t produce its own light , like the sun .

We see the moon because the sunlight falling on it gets reflected .

We see only that part of the moon , from which the light of the sun is reflected .

The moon completes one rotation on its axis as it completes a revolution around he earth .

Moons surface is dusty and

barren .

It has mountains higher than

Mount Everest.

Meteors

The sun and the

celestial bodies that

revolve around it

form the solar

system .

It consists of :

Asteroids CometsPlanets

The solar

system also

consist of 8

planets, which

are :

The Sun

The sun is the nearest star from us.

It is continuously emitting huge amounts of heat and

light.

The Sun is the main source of heat & light for all the

planets.

Planets look like stars, but they don’t have

their own light.

A planet has a definite path in which it revolves around the sun called orbit. They also revolve on their own

axis.

Bodies revolving around planets are called natural

satellites. Man-made satellites are called artificial

satellites.

Any celestial body revolving around

another celestial body is called its satellite.

The Planets

Nearest planet to the sun

Smallest planet in the Solar System

No satellite of its own

Earth’s nearest planetary neighbour

Brightest planet in the night sky

Called a morning or an evening star

Rotates from East to West, unlike Earth

Only planet in which life is known to exist

Existence & continuation of life is due to special

environmental conditions

It has right temperature range, presence of water, suitable atmosphere and

ozone blanket

The earth has only one moon

First planet outside the Earth’s orbit

Because of its colour, it is also called Red Planet

Has two small natural satellites

Largest planet of the solar system

Its mass is 318 times of our Earth

It rotates very

rapidly on its axis

It has 67 confirmed

moons It has faint rings around it

Its rings make it unique & beautiful

It has 63 moons

Its density is lesser than water

They are the outermost planets of the solar system

Uranus rotates from East to West

So, in its orbital motion it appears to roll on its side