Section 1
Earth in Space
Reading for Meaning
Pre-Reading
PREVIEW
Diagrams, Figures, Picture
Page 465-466
How Earth Moves
•
In what two ways does the Earth move in space?
Rotation
•
What is the imaginary line that passes through Earth's center called?
•
What is the spinning of Earth on its axis called?
•
What does Earth's rotation cause?
•
How many hours does it take for the Earth to rotate?
•
What is that 24 hour cycle called?
How Earth Moves
Revolution
•
In addition to rotating on it's axis, how else does the Earth travel?
•
What is it called when one object travels around another?
•
what is one complete revolution of the Earth around the sun called?
•
What is the path that Earth takes as it
revolves around the sun called?
How Earth Moves
Calendars
•
A calendar is a system of organizing what?
•
What is the time from one full moon to another?
•
How long does it take the Earth to "orbit" or revolve
around the sun?
The Seasons on Earth
•
What are the four distinct seasons?
How Sunlight Hits Earth
•
Where does the sunlight most directly hit the Earth?
•
How does sunlight arrive at the poles?
•
Where is it warmer, at the equator or at the poles?
The Seasons on Earth
Earth's Tilted Axis
•
What would happen if the Earth's axis was straight up
and down?
•
Why does the Earth have seasons?
•
Is the change in Earth's seasons caused by the Earth's
distance from the sun?
The Seasons on Earth
Earth in June
•
In June, which end of Earth's axis is tilted towards the
sun?
•
Which of Earth's hemispheres is tilted towards the sun
in June?
The Seasons on Earth
Earth in December
•
In December which people receive the most direct
sunlight?
•
At the same time what is happening to the sun's rays
in the Northern Hemisphere?
The Seasons on Earth
Solstices
•
What are the days, when the sun is farthest north or south of the equator known
as?
•
When is the summer solstice in the Northern Hemisphere (the hemisphere we
live in)?
•
When is the winter solstice in the Northern Hemisphere (the hemisphere we live
in)?
•
Which solstice is the "longest" day of the year in the Northern Hemisphere (the
hemisphere we live in)?
•
Which solstice is the "shortest" day of the year in the Northern Hemisphere (the
hemisphere we live in)?
The Seasons on Earth
Equinoxes
•
Which hemisphere is tilted towards the sun on an
EQUINOX?
•
How long are the day and night during a Equinox?
•
When is the vernal (spring) Equinox in the Northern
Hemisphere (the hemisphere we live in)?
•
When is the autumnal (fall) Equinox in the Northern
Hemisphere (the hemisphere we live in)?