1. Night and Day

2. Astronomy: the study of the moon, stars and other objects in space
Characteristics of Earth
diameter: km or 7946 miles
Axis: imaginary line that passes through Earth’s center and the North and South Poles

3. Motion of Earth Rotation: the spinning of Earth on its axis
Rate: km/ hr
Rotation creates day and night
Rotates in Eastward direction
Revolution: movement of one object around another
One revolution around the sun = one year
Orbit: path that one object takes around another
Elliptical in shape