Geoscience Reference
In-Depth Information
© Paul Souders/Age Fotostock
A multiple exposure such as this one shows the change in the Sun's position during a beautiful arctic sunset in the
summer months. This chapter focuses on the character and significance of the Earth/Sun geometric relationship.
L E A R N I N G O B J E C T I V E S
C H A P T E R P R E V I E W
1.
Understand the Earth's position in space.
2.
Describe the nature of Earth's axial tilt and orbit
around the Sun.
3.
Discuss the concept of the subsolar point and its
seasonal movement.
4.
Explain why the Equator, Tropic of Cancer, and Tropic
of Capricorn are important features associated with
Earth-Sun geometry.
5.
Explain the concept of Sun angle and how it varies
both by latitude and seasonally.
6.
Understand how we sense the Earth-Sun geometric
relationship.
7.
Demonstrate understanding of Earth-Sun relationships
by accurately predicting outcomes based on variable
tilt scenarios.
Our Place in Space
The Seasons
Orbital View and Earth as Viewed from
the Sun
Human Interactions: How We See
Earth-Sun Geometry on Earth
Celestial Dome
Sun Angle and Length of Day
Earth-Sun Geometry and Ancient
Humans
