Chapter 27 Study Notes
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Transcript of Chapter 27 Study Notes
Chapter 27 Study NotesChapter 27 Study Notes
Planets of the Solar SystemPlanets of the Solar System
Chapter 27 Section 1Chapter 27 Section 1
Formation of the Solar SystemFormation of the Solar System
11
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
22
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%
33
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
44
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
55
Small bodies that orbit planets are called Small bodies that orbit planets are called ______. ______. moons
66
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
77
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
88
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
99
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
1010
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
Chapter 27 Section 2Chapter 27 Section 2
Models of the Solar SystemModels of the Solar System
1111
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
1212
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
Chapter 27 Section 3Chapter 27 Section 3
The Inner PlanetsThe Inner Planets
1313
Impact _______ are caused by collisions Impact _______ are caused by collisions with _______ in space. with _______ in space.
cratersobjects
1414
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
1515
Venus is a planet with a runaway Venus is a planet with a runaway ___________ effect.___________ effect.greenhouse
1616
The right combination of temperature, The right combination of temperature, ______, and oxygen supports ___ on ______, and oxygen supports ___ on Earth.Earth.water life
1717
_____ 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
1818
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
1919
_____ is a planet which has _______ _____ is a planet which has _______ regions that may still be active. regions that may still be active. Mars volcanic
Chapter 27 Section 4Chapter 27 Section 4
The Outer PlanetsThe Outer Planets
2020
The _______ belt can be found between The _______ belt can be found between the planets _____ and Jupiterthe planets _____ and Jupiter
asteroidMars
2121
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
2222
The least ______ planet in the solar The least ______ planet in the solar system is _______. system is _______.
denseSaturn
2323
Neptune’s Great _____ ____ is a giant Neptune’s Great _____ ____ is a giant storm. storm.
Dark Spot
2424
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
2525
_______ that circle stars other than _______ that circle stars other than Earth’s sun are called _________.Earth’s sun are called _________.Planets
exoplanet
THE ENDTHE END