creating a timelapse of the changing colors of autumn. Today we have the autumn equinox in the Northern Hemisphere. This seems like an appropriate time to share some resources for teaching about the sights and sounds of autumn.
On National Geographic's Education page there are two resources worth noting. The first is a simple illustration of the position of Earth relative to the sun throughout the year. That illustration could support your use of this hands-on activity designed to help students understand the changes in intensity and duration of sunlight on their part of the world throughout the year. Both resources are appropriate for elementary school students.
Sixty Symbols offers an eleven minute video about equinoxes and solstices. It's not a video that most kids will find engaging, but I'm including it because in it you can see a demonstration of how you can use the free Stellarium software in your lessons.
To help students understand why the leaves change colors in the fall, the Maine Forest Service has an animated video explaining why leaves change colors. The video is titled Maine's Autumn Magic and you can watch it here. To help students understand some of the terms in the video, the Maine Forest Service has a glossary of tree terms.
USA Today has a simple interactive illustration that students can click through to see how the weather affects the color of leaves. Students can select individual tree leaves to see what different leaves look like throughout the seasons.
Although they're not as informative as the two resources above, National Geographic has a couple of nice photo galleries of fall foliage. Click here for a small gallery of images from Acadia National Park. Click here for a gallery of images from the Adirondack Park.
Untamed Science offers a good, partially animated, explanation of why leaves change colors, what produces the colors, and why bright and sunny days are best for viewing red leaves. The video is embedded below.
Autumnal Colors is a short video produced by Thomas Rasel. The two minute video highlights the sights and sounds of autumn. A bugling elk and a squirrel preparing for winter are a couple of the sights and sounds included in the video.
Autumn from Thomas Rasel on Vimeo.
Autumn Stars and Planets is a short PBS video that explains why the stars and planets that we see from Earth change with the seasons. The video is embedded below.
Reactions, a great YouTube channel from the American Chemical Society, released a new video about the chemistry involved in the process of leaves changing color. The videos explains how chlorophyll and the glucose stored inside trees help reveal the reds, yellows and, browns of fall foliage.