In the summer, it’s hot and the days are long. In winter, it’s colder and the sun sets earlier.

These are the signs of the changing seasons throughout the year.

How do we change season?

Let’s look from space! The earth has an imaginary line round the middle called the equator. Above it is the Northern Hemisphere and below, the Southern Hemisphere.

Our planet spins round on a tilted axis at 23°.

It also goes right around the Sun in a year.