Revolution
The season in the northern hemisphere when it is pointed towards the Sun.
What is summer.
The season in the northern hemisphere when it is pointed away from the Sun.
What is winter.
The seasons when the Earth is pointed neither away or towards the Sun.
What is spring and fall?
When the angle of the sun light is direct, we experience this season.
What is summer?
When the sun hits the Earth at an angle, we experience this season.
What is winter?