How do we get the seasons?

We have looked at how Earth has an imaginary axis running through it from the North Pole to the South Pole. It is also tilted to 23 degrees and this is why we have seasons. As we orbit the sun, when the Northern Hemisphere is tilted towards the sun, it is closer to the sun so it is Summer. When the Northern Hemisphere is tilted away from the sun, it is further away from the sun so it is Winter.