12/8/10

The reason for the seasons

Earth is unlike any other planet. We have water, oxygen, plants, animals and an atomosphere. We also have 4 different seasons that cause weather changes. Have you ever stopped and wondered why it's cold during the winter time, but warm and sunny during summer?




What about the middle seasons, like Spring and Autumn? During the Spring time, the flowers begin to bloom the animals migrate back to their warmer habitat. It begins to warm up during Spring. After summer, we begin to see the leaves change colors and the temperature begins to cool down as we enter into Autumn. Crops are ready to be harvested before the winter.


















Right now, we're experiencing Winter. There are more clouds in the sky, and the temperature has dropped since summer time. Houston's winters are usually rainy and cold, but every once in awhile, we get snow or ice!





The reason we have seasons is because the earth is tilted on it's axis. During our summer, the top half (Northern Hemisphere) of the earth is pointed towards the sun, so we are exposed to the sun's warmth more. The bottom half (Southern Hemisphere) of the earth is pointed away from the sun, so they are experiencing winter.

When we orbit the sun, we will sometimes be pointed towards the sun, and we will sometimes be pointed away from the sun.




1. Why do we have seasons on the Earth?

2. How are seasons in the Northern Hemisphere alike and different from those in the Southern Hemisphere?

3. What would happen with the Seasons if the Earth never orbited around the Sun?

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