3. Due to Earth’s 23.5o tilt & revolution.
SEASONS
Due to Earth’s 23.5o tilt & revolution.

5. Tilt is shown here.

6. Angle of Insolation.

9. Which diagram best represents the Sun’s apparent path as seen by an observer at 43.5° N latitude on December 21?

11. Which location is the North Pole?
(3) Location C
(2) Location B (4) None
(1) Location A

12. A C About 365 How many Earth rotations equals one Earth revolution?
The diagram below shows a model of Earth’s orbit around the Sun. Letters A, B, C, and D represent Earth’s position at the beginning of each season.
How many Earth rotations equals one Earth revolution?
Which position of Earth represents the day when Earth’s revolution is fastest?
Which position of Earth represents the first day of summer in the Northern
Hemisphere? C A
About 365

13. Which statement best compares the angles of insolation at noon on March 21 and June 21 in New York State?
(1) The angle of insolation is 23.5o greater on the 21st
day of March, making the sun more intense.
(2) The intensity and angle of insolation are
approximately equal on March 21 and June 21.
(3) The angle of insolation is 23.5o greater on the 21st
day of June, making the sun more intense.
(4) The sun is more intense on March 21 and the angle
of insolation is greatest on June 21.

14. to indicate the location of the shadow of the “Observer in Buffalo”.
On the same
sky model diagram
place a at the
apparent position
of the North Star as
seen from Buffalo.
With your sun at 3 PM
on March 21, use a line
to indicate the location
of the shadow of the
“Observer in Buffalo”.
On the path labeled March 21
Indicate the location of the
Sun at 3PM
Draw a line to represent the apparent path of the Sun from sunrise to sunset at Buffalo on May 21.