Some areas of the planet experience extremely hot or extremely cold temperatures, while others vary lightly or are even mild. The reason that we have the seasons has to do with how the earth is tilted.
This is not completely true. It all has to do with the fact that the earth is tilted and rotates on an axis. If you look at any globe in the school or library, you will notice that it is set up on an angle and not straight up and down.
This angle is known as the axis of the earth. The earth experiences the seasons differently, depending upon where you are on the earth and the time of the year. The axis stays in this direction for six months and then for the next six months it shifts so that the northern hemisphere is closer to the sun but the southern hemisphere is pointed away.
Whichever hemisphere is pointed towards the sun receives more energy from the sun. However, in the Northern Hemisphere, we are having winter when Earth is closest to the Sun and summer when it is farthest away! Compared with how far away the Sun is, this change in Earth's distance throughout the year does not make much difference to our weather.
Earth's axis is an imaginary pole going right through the center of Earth from "top" to "bottom. That is why we have day and night, and why every part of Earth's surface gets some of each. Long, long ago, when Earth was young, it is thought that something big hit Earth and knocked it off-kilter.
So instead of rotating with its axis straight up and down, it leans over a bit. By the way, that big thing that hit Earth is called Theia. It also blasted a big hole in the surface. That big hit sent a huge amount of dust and rubble into orbit. How to videos Why join? What are seasons? Savour the seasons with your primary-school child by reinforcing what they learn about autumn, winter, summer and spring in KS1 with at-home activities.
Login or Register to add to your saved resources. Every year our planet experiences four seasons: autumn, winter, spring and summer. As Earth moves around the Sun it spins in a slightly tilted position on an axis tilted This tilt is what causes our seasons because through the year different parts of the planet are angled towards or angled away from the Sun's light.
More or less sunlight and heat impact on the length of each day and the average daily temperature in different seasons, as well as the amount of rainfall. Download fantastic science resources today! Experiments And Science Fun pack Science Learning Programme for each school year All the instructions, questions and information you need. Download FREE resources.
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