Causes of the Seasons

The seasons are spring, summer, fall and winter.

Have you ever wondered why the weather temperature changes in different seasons? Why winters are cold and summers are hot? After all, the earth always gets the heat and light from the same sun.

If we get closer to a fire, we get hotter. Could it be then that the Earth gets closer to the Sun during Summer, and farther during Winter? Is it the angle of the earth and sun radiations that change? Is it the length of days that change?

Material and instructions:
In this project you will study the causes of seasons. Come up with a testable hypothesis about the causes of seasons and then perform your experiments or observations. You will need at least 2 weeks for your experiments and some more days for information gathering and preparation of reports and display board.
Details of this project:
More information or support on this project is available for members section of You may also find a Science kit for this topic at