Rotation and Revolution
All about Earth's Rotation and Revolution
Rotation and Revolution
Rotation is what causes day and night. It also causes seasons. The earth's axis is tilted at an angle of 23.5 degrees. If the earth was not tilted we'd have the same season all year around.
Earth's Rotation
This is picture is showing rotation or the earths and what paths it takes.
Earth's Axis
This is earths axis. It is tilted at an angle of 23.5. You can't actually see this line in space. It is just shown to show you that earth's axis is tilted.
Sun
These are the different phases of the sun. As you can see earth is down at the bottom. This diagram is showing that whatever way the earth is tilted on it's axis, a different amount of sunlight is seen from earth.
Earth's Rotation & Revolution: Crash Course Kids 8.1
Rotation and Revolution Song