Seasons are caused because of the earth changing position with the sun. The earth travels around the sun called an orbit once a year. As the earth orbits the sun the amount of sunlight each place on the planet gets every day changes slightly, This change causes the seasons. We divide the year into four seasons spring, summer, ortim, and winter. Each season lasts 3 months, with summer being the warmest winter being the coldest with spring and ortim lying in between. The seasons have a lots of impact and what happens.