Rotation is the solid Earth rotating around its own axis. The Earth rotates from the west towards the east. The rotation determines what time of day it is.
The Earth's axis is an imaginary line that extends from the North to the South Pole. Earth's axis is tilted 23 degrees.
Earth's revolution is called a year. It takes 365.25 days to rotate the sun. Since it's not an exact number, we have a leap year every four years that provides an extra day to make up the difference.
When the earth's axis points towards the sun, it is summer for that hemisphere. When the earth's axis points away then its winter in that hemisphere. The middle time between these two times is spring and autumn.
The Earth's axis is an imaginary line that extends from the North to the South Pole. Earth's axis is tilted 23 degrees.
Earth's revolution is called a year. It takes 365.25 days to rotate the sun. Since it's not an exact number, we have a leap year every four years that provides an extra day to make up the difference.
When the earth's axis points towards the sun, it is summer for that hemisphere. When the earth's axis points away then its winter in that hemisphere. The middle time between these two times is spring and autumn.