Transcript Chapter 20

CHAPTER
NEW CHAPTER
Earth, Moon, and Sun
the BIG idea
Earth and the Moon move in predictable ways as they orbit the Sun.
20.1 Earth rotates on a tilted axis and orbits the Sun.
20.2 The Moon is Earth’s natural satellite.
20.3 Positions of the Sun and Moon affect Earth.
CHAPTER OUTLINE
CHAPTER RESOURCES
20.1
CHAPTER HOME
KEY CONCEPT
Earth rotates on a tilted axis and orbits
the Sun.
Earth’s rotation in
sunlight causes day and
night.
The changing angles of
sunlight on Earth cause
seasons.
VOCABULARY
axis of rotation
revolution
season
equinox
solstice
CHAPTER
RESOURCES
SECTION
OUTLINE
20.1
CHAPTER HOME
KEY CONCEPT
Earth rotates on a tilted axis and orbits
the Sun.
Earth’s rotation in
sunlight causes day and
night.
The changing angles of
sunlight on Earth cause
seasons.
VOCABULARY
axis of rotation
revolution
season
equinox
solstice
VISUALIZATION
CLASSZONE.COM
Find out how sunlight
affects the temperature
in different places at
different times of year.
CHAPTER
RESOURCES
SECTION
OUTLINE
20.2
KEY CONCEPT
CHAPTER HOME
The Moon is Earth’s natural satellite.
The Moon’s near side always faces Earth.
VOCABULARY
mare
Dark-colored maria
formed from
lava-filled craters.
Light-colored highlands
are old and cratered.
CHAPTER
RESOURCES
SECTION
OUTLINE
20.2
KEY CONCEPT
CHAPTER HOME
The Moon is Earth’s natural satellite.
The Moon’s near side always faces Earth.
VOCABULARY
mare
The Moon has layers.
crust
mantle
core
CHAPTER
RESOURCES
SECTION
OUTLINE
20.3
CHAPTER HOME
KEY CONCEPT
Positions of the Sun and Moon affect Earth.
Lunar phases are different views of the Moon’s sunlit
half.
VOCABULARY
eclipse
umbra
Moon
penumbra
Earth
VISUALIZATION
CHAPTER
RESOURCES
CLASSZONE.COM
Explore lunar phases.
SECTION
OUTLINE
20.3
CHAPTER HOME
KEY CONCEPT
Positions of the Sun and Moon affect Earth.
Lunar phases are different views of the Moon’s sunlit
half.
VOCABULARY
Shadows cause eclipses.
umbra
eclipse
penumbra
penumbra
umbra
CHAPTER
RESOURCES
SECTION
OUTLINE
20.3
CHAPTER HOME
KEY CONCEPT
Positions of the Sun and Moon affect Earth.
Lunar phases are different views of the Moon’s sunlit
half.
VOCABULARY
Shadows cause eclipses.
umbra
The Moon’s gravity causes tides as Earth turns.
penumbra
eclipse
low tide
High tide
Moon
rotation of Earth
CHAPTER
RESOURCES
SECTION
OUTLINE
20.1
KEY CONCEPT
CHAPTER HOME
Earth rotates on a tilted axis and orbits
the Sun.
I. Earth rotates on a tilted axis and orbits the Sun.
VOCABULARY
axis of rotation
A. Earth’s rotation causes day and night.
revolution
B. Earth’s tilted axis and orbit cause seasons.
season
1. Seasonal Patterns
equinox
solstice
2. Angles of Sunlight
3. Lengths of Days
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
20.2
KEY CONCEPT
CHAPTER HOME
The Moon is Earth’s natural satellite.
II. The Moon is Earth’s natural satellite.
VOCABULARY
mare
A. The Moon rotates as it orbits Earth.
B. The Moon’s craters show its history.
1. Craters and Maria
2. Moon Rocks
C. The Moon has layers.
1. Structure
2. Formation
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
20.3
KEY CONCEPT
CHAPTER HOME
Positions of the Sun and Moon affect Earth.
III. Positions of the Sun and Moon affect Earth.
A. Phases are different views of the Moon’s sunlit
half.
1. Waxing Moon
VOCABULARY
eclipse
umbra
penumbra
2. Waning Moon
3. Crescent and Gibbous Moons
B. Shadows in space cause eclipses.
1. Lunar Eclipses
2. Solar Eclipses
C. The Moon’s gravity causes tides on Earth.
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
CHAPTER HOME
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