Download - Chapter 27 Study Notes
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Chapter 27 Study NotesChapter 27 Study Notes
Planets of the Solar SystemPlanets of the Solar System
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Chapter 27 Section 1Chapter 27 Section 1
Formation of the Solar SystemFormation of the Solar System
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A rotating cloud of gas and dust from A rotating cloud of gas and dust from which Earth’s solar system formed is which Earth’s solar system formed is called a solar ______.called a solar ______.nebula
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About ____ of all matter contained in the About ____ of all matter contained in the solar nebula now exists in the sun.solar nebula now exists in the sun.
99%
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Small bodies from which planets Small bodies from which planets originated during the early ________ of originated during the early ________ of the solar system are called the solar system are called ____________.____________.
formation
planetesimals
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When the solar system formed, smaller When the solar system formed, smaller bodies joined together through collision bodies joined together through collision and the force of ______ to form larger and the force of ______ to form larger bodies called __________. bodies called __________.
gravityprotoplanets
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Small bodies that orbit planets are called Small bodies that orbit planets are called ______. ______. moons
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Young Earth formed a core, mantle, and Young Earth formed a core, mantle, and crust in a process called ___________.crust in a process called ___________.differentiation
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Around the ____ of Earth is an iron- and Around the ____ of Earth is an iron- and magnesium-rich rock layer called the magnesium-rich rock layer called the ______. ______.
core
mantle
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When early Earth’s atmosphere When early Earth’s atmosphere formed, ______ and hydrogen gases were formed, ______ and hydrogen gases were lost because Earth’s ______ was too lost because Earth’s ______ was too weak.weak.
heliumgravity
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The early __________ developed when The early __________ developed when many volcanic eruptions released large many volcanic eruptions released large amounts of gases in a process called amounts of gases in a process called _________._________.
atmosphere
outgassing
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The early oceans became _____ when The early oceans became _____ when dissolved solids were carried from land dissolved solids were carried from land into the oceans. into the oceans.
salty
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Chapter 27 Section 2Chapter 27 Section 2
Models of the Solar SystemModels of the Solar System
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Copernicus proposed a ___________ Copernicus proposed a ___________ model of the universe, in which the planets model of the universe, in which the planets revolve at different speeds around the sun.revolve at different speeds around the sun.
heliocentric
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Kepler’s ____ law states that planets orbit Kepler’s ____ law states that planets orbit the sun in paths called _______.the sun in paths called _______.ellipses
first
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Chapter 27 Section 3Chapter 27 Section 3
The Inner PlanetsThe Inner Planets
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Impact _______ are caused by collisions Impact _______ are caused by collisions with _______ in space. with _______ in space.
cratersobjects
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The factors that contribute to Mercury’s The factors that contribute to Mercury’s daily temperature fluctuation of about daily temperature fluctuation of about 600°C are the planet’s slow _______ and 600°C are the planet’s slow _______ and it is the closest planet to the ____.it is the closest planet to the ____.
rotationsun
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Venus is a planet with a runaway Venus is a planet with a runaway ___________ effect.___________ effect.greenhouse
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The right combination of temperature, The right combination of temperature, ______, and oxygen supports ___ on ______, and oxygen supports ___ on Earth.Earth.water life
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_____ is the planet that has _______ like _____ is the planet that has _______ like Earth’s because its axis tilts at an almost Earth’s because its axis tilts at an almost identical angle. identical angle.
Mars seasons
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Mars’s volcanoes are _____ than those of Mars’s volcanoes are _____ than those of Earth because Mars has no moving Earth because Mars has no moving tectonic plates. tectonic plates.
larger
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_____ is a planet which has _______ _____ is a planet which has _______ regions that may still be active. regions that may still be active. Mars volcanic
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Chapter 27 Section 4Chapter 27 Section 4
The Outer PlanetsThe Outer Planets
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The _______ belt can be found between The _______ belt can be found between the planets _____ and Jupiterthe planets _____ and Jupiter
asteroidMars
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Jupiter’s Great _____ Spot and ________ Jupiter’s Great _____ Spot and ________ Great Dark Spot are both raging ______.Great Dark Spot are both raging ______.
Red Neptune’sstorms
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The least ______ planet in the solar The least ______ planet in the solar system is _______. system is _______.
denseSaturn
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Neptune’s Great _____ ____ is a giant Neptune’s Great _____ ____ is a giant storm. storm.
Dark Spot
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A region of the solar system just _______ A region of the solar system just _______ Neptune’s orbit, which contains small Neptune’s orbit, which contains small bodies made mostly of ice, is called the bodies made mostly of ice, is called the ______ belt. ______ belt.
beyond
Kuiper
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_______ that circle stars other than _______ that circle stars other than Earth’s sun are called _________.Earth’s sun are called _________.Planets
exoplanet
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THE ENDTHE END