Can you tell an equinox from a solstice?

The two equinoxes and two solstices mark the beginning of astronomical seasons. But what is the difference between an equinox and a solstice? And what's the reason the Earth has seasons at all? Take this quiz to get answers to these questions and learn fun facts about equinoxes and solstices.
Equinoxes and Solstices
7.2 / 10