Chapter 18 · Uranus 7th Planet from the Sun A gas giant Rotates on its side This is the largest...

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Chapter 18

Transcript of Chapter 18 · Uranus 7th Planet from the Sun A gas giant Rotates on its side This is the largest...

Page 1: Chapter 18 · Uranus 7th Planet from the Sun A gas giant Rotates on its side This is the largest planet you can see from earth with out a telescope. Atmosphere is made up of methane

Chapter 18

Page 2: Chapter 18 · Uranus 7th Planet from the Sun A gas giant Rotates on its side This is the largest planet you can see from earth with out a telescope. Atmosphere is made up of methane

Lesson 1

What Makes up the Universe?

The universe is all of space and everything in it.

A Galaxy is a system of dust, gas, and many

millions of stars held together by gravity.

We live in the Milky Way Galaxy. The Milky Way is

shaped like a flat spiral.

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Astronomy is the

study of the Sun, Moon,

stars, and the other

objects in space.

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The Solar System

The Solar System includes the Sun, the planets,

their moons, and other objects.

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Gravity is the force that keeps Earth and other

objects in their orbits

The Sun is so massive that its gravity pulls the

planets toward it.

gravity video

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Inner Planets

Mercury

Closest plant to the Sun.

Covered with craters or dents shaped like bowls

Mercury is extremely hot during the day and is very

cold at night because there is not an atmosphere to

keep in the heat.

The Mariner 10 is a space probe that visited Mercury in

1974. A space probe is a vehicle that carries cameras

and other tools for studying different objects in space.

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Venus

Venus rotates in the opposite direction than

Earth.

Venus has an atmosphere, but the clouds are

poisonous.

The clouds reflect the Sun’s light which

makes it one of the brightest objects in the

sky.

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Mars

4th planet from the Sun

Soil contains iron oxide, which gives it a reddish-brown color. Called the “Red Planet”

Has 2 moons

Mars video 10 minutes

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Gas Planets

Jupiter—5th planet from the Sun

Gas gaint—a planet made of mostly gases

Largest planet in our solar system

It is so large that if it was hollow inside all the other

planets would fit inside.

Has a large red spot which is actually a large storm.

Has rings that are very dark and can not be seen from

Earth.

Video on Gas Planets (2:13 minutes)

Page 10: Chapter 18 · Uranus 7th Planet from the Sun A gas giant Rotates on its side This is the largest planet you can see from earth with out a telescope. Atmosphere is made up of methane

Saturn 6th planet from the Sun

Is a gas giant

Has large rings. The rings are made up of everything from dust to large boulders.

Galieo saw the rings from earth and thought they were handles in the 1600’s

Has 34 moons.

Page 11: Chapter 18 · Uranus 7th Planet from the Sun A gas giant Rotates on its side This is the largest planet you can see from earth with out a telescope. Atmosphere is made up of methane

Uranus 7th Planet from the Sun

A gas giant

Rotates on its side

This is the largest planet you can see from earth

with out a telescope.

Atmosphere is made up of methane which is a

liquid and gives Uranus its fuzzy blue-green look

Has at least 27 moons

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Neptune 8th Planet

Smallest of the gas planets, but it is still very

large. It could hold 60 Earths inside if it was

hollow.

Has strong winds that blow huge storms across

the planet.

Has at least 13 moons. One of its moons is the

coldest body in our entire Solar System -235 C