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

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Presentation transcript:

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

Tilt is shown here.

Angle of Insolation.

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

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

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

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.

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.