22.8 to 22.10 Lesson: Inner, Outer, Mercury, Venus

Inner Planets

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My Very Excited Mother Just Served Us Nachos.

Characteristics of Inner Planets

Smaller

Compared to outer planets, inner planets are much smaller.

Rocky

Inner planets are made of rock.

Hotter Temperature

Inner planets are hotter than the outer planets

Faster Orbits

Inner planets orbit faster than outer planets.

Less Moons

Inner planets have less moons than outer planets.

Outer Planets

What are their characteristics?

Outer Planets

Made Of: Gases

Size: Larger

Location: Farthest from the Sun

Jupiter

Order from Sun: 5th

Number of Moons: 79 (53 named, 26 awaiting names)

Temperature: Coldest -260F, Warmest -150F

Atmosphere: Gases - hydrogen, helium, methane & ammonia, Stormiest (Great Red Spot)

Jupiter: Interesting Facts

-Largest Planet

-Thin, cold atmosphere becomes thicker and hotter and turns into a thick, dark fog which becomes so pressurized it turns into a liquid

-Named after the Roman sky-god

Saturn

Order from Sun: 6th

Number of Moons: 82 (most in solar system)

Temperature: Coldest -300F, Warmest -188F

Atmosphere: Gases - hydrogen and helium

Saturn: Interesting Facts

-Rings are made of ice crystals (some as big as houses) - must use a telescope on Earth to see them

-Named after the Roman god of agriculture

Uranus

Order from Sun: 7th

Number of Moons: 27

Temperature: Coldest -370F, Warmest -243F

Atmosphere: hydrogen & methane (absorbs red light and scatters blue light)

Uranus: Interesting Facts

-Coldest planet in our solar system

-Rotates like a barrell (on its side) instead of a top

-Named after Greek god of the sky

Neptune

Order from Sun: 8th

Number of Moons: 14

Temperature: Coldest -328F, Warmest -218F

Atmosphere: Gases - helium & methane, windiest

Neptune: Interesting Facts

-Most violent weather

-Triton - moon that orbits planet backward

-Named after Roman god of the sea

Mercury

Exploring our solar system

By Mr. Reed

Venus

​by Mr. Reed