Lesson 3 notes

1. rotation: Earth’s west to east spin

2. axis: an imaginary line that extends from the North Pole to the South Pole.

3. solar noon: when the shadow is shortest, the Sun is at its highest point in the sky.

4. When the shadow is shortest, the Sun is at its highest point in the sky.

5. horizon: the plane that extends from you eye to the edge of the Earth.

6. angular separation: the angle between lines originating from the eye of the observer toward two objects. This is the angular separation between the Sun’s apparent position in the sky and the horizon.

7. The Earth’s counterclockwise rotation make the Sun appear to move across the sky in a clockwise fashion (east to west).

8. Night results as Earth rotates away from the Sun, and daylight “breaks” again as Earth completes its rotation.