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The Solar System

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STAR Star are twinkling bodies.

Star have their own light and heat.

Sun is star.

They do not twinkle. They do not have their own light.

Earth is a planet.

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Our Solar System

Our solar system is madeup of:

Sun Nine planets

Their moons

Asteroids Comets

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Inner PlanetsThe inner four rockyplanets at the center

of the solar systemare:

Mercury

VenusEarth

Mars

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Mercury Planet nearest the sun

Second smallest planet It has a liquid outer core.

It has an extremely thin

atmosphere

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Venus Sister planet to Earth

Has no moons or rings Hot, thick atmosphere

Brightest object in sky besides sun

and moon (looks like bright star) Covered with craters, volcanoes,

and mountains

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Earth Third planet from sun

Only planet known to have life andliquid water

Atmosphere composed ofcomposed of Nitrogen (78%),

Oxygen (21%), and other gases(1%).

It has gravity.

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Mars Fourth planet from sun

Appears as bright reddish color inthe night sky.

One half the size of Earth

It takes 2 years on Mars to revolvethe Sun once.

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Outer PlanetsThe outer planets

composed of gas are :Jupiter

Saturn

UranusNeptune

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Jupiter Largest planet in

solar system

Brightest planet insky

Fifth planet from the

Sun A year on Jupiter is

11 Earth years long

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Saturn 6th planet from sun

Beautiful set of rings 31 moons

Largest moon, Titan,

Easily visible in thenight sky

http://www.windows.ucar.edu/tour/link=/saturn/images/saturn_false_image.html

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Uranus 7th planet from sun

Has a faint ring system

27 known moons

Covered with clouds

It is greenish in colours

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Neptune 8th planet from sun Discovered through math 7 known moons Triton largest moon Great Dark Spot thought

to be a hole, similar to

the hole in the ozonelayer on Earth It is blue in colour

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Outermost PlanetPluto, the outermost

planet, is a small solidicy planet is smallerthan the Earth'sMoon, it is also called

Dwarf planet.

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Pluto

9th planet from sun(usually)

Never visited byspacecraft

Orbits very slowly

Moon, Charon, is veryclose to Pluto andabout the same size

http://www.windows.ucar.edu/tour/link=/asteroids/images/gaspracol_image.html

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Asteroids

Small bodies Believed to be left

over from the

beginning of the solarsystem billions ofyears ago

100,000 asteroids lie

in belt between Marsand Jupiter Largest asteroids

have been given

names

http://www.windows.ucar.edu/tour/link=/asteroids/images/gaspracol_image.htmlhttp://www.windows.ucar.edu/tour/link=/comets/images/halray_image.html

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Comets

Small icy bodies

Travel past the Sun

Give off gas and dust asthey pass by

Occasionally seen after

long period Appear to have long tail

http://www.windows.ucar.edu/tour/link=/comets/images/halray_image.html

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Writing Activity

Write a paragraph about thesolar system. Include pointscovered in this presentation.

Solar System Activities

http://www.windows.ucar.edu/tour/link=/the_universe/images/OrionNebula_M42_gif_image.html

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Solar SystemActivities

Earth

Satellites Asteroids

Comets

The Sun

http://www.windows.ucar.edu/tour/link=/the_universe/images/OrionNebula_M42_gif_image.html

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