Chapter 4 Worksheets

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Chapter 4 Worksheets
Place these notes in your
Notebook.
After You Read
Explain the nebular hypothesis of the solar
system.
A huge cloud of gas and dust spun more and
more quickly as its size shrank. Heavier
materials gravitated toward the center. Heat
fused them together. They turned into liquids
and then solids such as our planet Earth.
4.2
Earth’s Layers
Solid
Outer
core
Inner core +
Crust
+
Mantle
+/-
Liquid
Depth
Temperature
+
2
2
1
1
4
4
3
3
+/-
4.2
After You Read
Add information to the concept map to
describe the effects of Earth’s rotation.
Coriolis effect
Effects of Earth’s Rotation
Day and night
Sunrise and Sunset
4.2
After You Read
Describe how Earth’s rotation affects a
pendulum.
As the Earth moves underneath the
pendulum, the pendulum’s direction of
swing changes in a clockwise direction
at a constant rate.
4.2
Define Earth’s axis of rotation and its rate
of rotation. Explain the impact of Earth’s
shape on its rotation of orientation.
The axis of rotation is the imaginary line
around which Earth rotates. The rate of
rotation is the speed at which Earth
rotates. Because of Earth’s spherical
shape, it turns farther in an hour at the
equator than at the Poles.
4.3
While You Read
Northern
Hemisphere
Southern
Hemisphere
Vernal equinox
Equal sunlight &
darkness
Equal sunlight &
darkness
Summer Solstice
Equal sunlight &
darkness
Equal sunlight &
darkness
Autumnal equinox
Most sunlight;
Least darkness
Least sunlight;
Most darkness
Winter solstice
Least sunlight;
Most darkness
Most sunlight; Least
darkness
4.3
After You Read
Explain how Earth’s revolution affects the
amount of sunlight and darkness at the
North and South Poles.
On the summer solstice, the North Pole
has continuous light, while the South
Pole has continuous darkness. On the
winter solstice, these positions are
reversed.
4.3
After You Read
Describe the Earth’s path around the sun
and its rate of revolution.
Earth revolves counterclockwise around
the sun. It travels in an elliptical orbit,
taking one calendar year to complete a
revolution.

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