The Four Seasons – Fall скачать в хорошем качестве

The Four Seasons – Fall

#seasons #fall #ngscience Learn about some of the changes that occur as the seasons change from summer to fall. Throughout the year regular changes occur in the weather. There are changes in the amount of sunlight, temperature, rain and snow fall. These repeating cycle of weather patterns are called seasons. In one year, there are four seasons – winter, spring, summer and fall. The seasons change as the Earth moves around the Sun. In the last video, I told you about the hottest season - Summer. In this video we'll take a quick look at the season that follows.....Fall, or as I call it Autumn. As the season changes from summer to fall, the weather continues to get cooler and the hours of sunlight decreases each day. As there is less sunlight, some plants stop producing chlorophyll – the chemical that gives leaves their green colour. The leaves break down the chlorophyl the leaves change color and eventually fall off. I guess that's why they call this season fall! As the weather continues to become cooler, some animals like bears, bats and squirrels prepare to go into hibernation. This means they become inactive and don't eat or drink much to save energy. They will continue to remain inactive through Winter until the weather becomes warmer and there is more food available. Other animals like birds and insects move to warmer weather – this is called migration. Fall is also the time of year when farmers harvest their crops of carrots, pumpkins and cauliflower. As winter approaches the weather gets even cooler and the days shorter. You can learn more about winter in our related videos.