The Solar System Module A Chapter 2 Grade

The Sun § § § Center of the universe Has the greatest mass Largest,

Key Terms § Meteorites: chunks of rocks from outer space. § Meteors: chunks of

The Inner Planets § Mercury § Venus § Earth § Mars

Inner Planet Earth Orbits around The sun The Earth is an inner planet It

The Inner Planets Mercury Closest planet to the sun Covered by dust Craters on

The Inner Planets Venus Has a thick atmosphere Surrounded by clouds Surrounded by Carbon

The Inner Planets Mars Looks reddish You may find water here Nights are colder

The Outer Planets § Jupiter § Saturn § Uranus § Neptune § Pluto

Outer Planets Jupiter Largest planet Made of layers of liquid hydrogen and helium Rings

Outer Planets Saturn Almost as large as Jupiter. Famous for its rings. Cold planet

The Outer Planets Uranus and Neptune Blue-green planets Very cold Very far from the

Pluto The smallest Farthest from The sun planet Ninth planet from The sun

Review Questions § The rings of Saturn, are caused by _______ and ______ that

What causes Mars to appear reddish? § Rusty Iron § Red paint § clouds

What is a meteor? § A star that burns brightly § An inner planet

Chunks of rock that burn brightly as they fall through Earth’s atmosphere.

Which is the largest planet? § Earth § Jupiter § Mars

Chunks of rock from outer space that reach Earth’s surface are: § Neptune §

Comets called ________ may surround the solar system. Oort Cloud Jupiter Peanut Butter

Connecting Idea Inner Planets Mercury Venus Earth Mars Outer Planets Jupiter Saturn Uranus Neptune

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The Solar System Module A Chapter 2 Grade 4

The Sun § § § Center of the universe Has the greatest mass Largest, brightest and hottest object in the solar system

Key Terms § Meteorites: chunks of rocks from outer space. § Meteors: chunks of rock that burn up brightly as they fall through the Earth’s atmospheres § Comets: icy balls of frozen gas and dust § Oort Cloud: clouds of comets

The Inner Planets § Mercury § Venus § Earth § Mars

Inner Planet Earth Orbits around The sun The Earth is an inner planet It is an inner planet Because of how close it is to the sun

The Inner Planets Mercury Closest planet to the sun Covered by dust Craters on it formed by meteorites

The Inner Planets Venus Has a thick atmosphere Surrounded by clouds Surrounded by Carbon dioxide and acid

The Inner Planets Mars Looks reddish You may find water here Nights are colder than the days Atmosphere is mostly carbon dioxide

The Outer Planets § Jupiter § Saturn § Uranus § Neptune § Pluto

Outer Planets Jupiter Largest planet Made of layers of liquid hydrogen and helium Rings of dust And ice Creates more heat than it receives Cold planet

Outer Planets Saturn Almost as large as Jupiter. Famous for its rings. Cold planet

The Outer Planets Uranus and Neptune Blue-green planets Very cold Very far from the sun

Pluto The smallest Farthest from The sun planet Ninth planet from The sun

Review Questions § The rings of Saturn, are caused by _______ and ______ that spin around the equator of the planet. § § § snow and sleet? Pickles and ice cream? Dust and ice?

Dust and Ice

What causes Mars to appear reddish? § Rusty Iron § Red paint § clouds

Rusty Iron

What is a meteor? § A star that burns brightly § An inner planet § Chunks of rock that falls through the Earth’s atmosphere

Chunks of rock that burn brightly as they fall through Earth’s atmosphere.

Which is the largest planet? § Earth § Jupiter § Mars

Jupiter

Chunks of rock from outer space that reach Earth’s surface are: § Neptune § Oort Cloud § Meteorites

Meteorites!

Comets called ________ may surround the solar system. Oort Cloud Jupiter Peanut Butter

Oort Cloud

Connecting Idea Inner Planets Mercury Venus Earth Mars Outer Planets Jupiter Saturn Uranus Neptune Pluto