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Arches National Park Geology Tour provides an extensive, visually rich description of the geology of Arches, by Deborah Ragland, Ph.D. See our DVD collection.

Exploratour - Life on Earth

Lactarius deliciosus
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Corel Photography

Although many fungi may look like plants, they are more closely related to animals. Fungi are not able to make their own food like plants can, so they must get their nourishment from other sources. Many fungi get their nutrients directly from the soil. Others feed on dead plants and animals. Some fungi even feed on living organisms. Athlete's foot is a common fungus which feeds on a living thing - it eats bits of skin from your toes!

The mushrooms we can buy at the supermarket are an example of a fungus that you can eat. However, those mushrooms are just a tiny bit of the whole fungus. The rest of the fungus (and the biggest part) lives below the ground where we cannot see it.

Fungi come in a wide variety of sizes and forms and many have very important uses to humans. Yeasts are very tiny fungi that we use to bake bread. And did you know that many medicines are produced with the help of fungi? If you've ever taken Penicillin to help you get over an infection, you can thank a fungus! The green mold that grows on bread that's been left out too long is a close relative of that very important medicine.

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Shop Windows to the Universe Science Store!

Learn about Earth and space science, and have fun while doing it! The games section of our online store includes a climate change card game and the Traveling Nitrogen game!

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Traveling Nitrogen Classroom Activity Kit

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Giant Redwoods Attacked by Tiny Fungus

Redwood trees are the tallest trees in the world. They grow in Northern California and can live for as long as 2000 years. Today, a deadly fungus threatens these trees. Both the redwood trees and some...more

ExploraTour - Looking at the World in a Different Light

Look at the bed below the body of the sleeping man. You can still see where he was lying down. The heat from his body warmed up the bed sheets which are now radiating infrared light toward your eyes....more

ExploraTour - Looking at the World in a Different Light

All warm objects (not just people) release infrared light. Warmer objects give off more infrared light. Very hot objects radiate other types of light as well. Click on the picture to see the infrared...more

ExploraTour - Looking at the World in a Different Light

What kinds of light can people see? Our eyes can see visible light. When it passes into our eyes different types of visible light create different sensations that we see as colors. ...more

ExploraTour - Looking at the World in a Different Light

Imagine you found a pair of special glasses that not only gave you telescopic vision but gave you the ability to see all forms of radiant energy. The universe in visible light contains all the familiar...more

ExploraTour - Looking at the World in a Different Light

This is a volcano on the island of Miyake in Japan. It has erupted, sending hot lava and ash into the air, a total of ten times. The time after one eruption until the next occurred was about twenty years...more

ExploraTour - Looking at the World in a Different Light

This is a picture of a galaxy in visible light. A galaxy is a large number of stars, some like our sun, some bigger, some smaller and all moving together through space. This galaxy is called Centaurus...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF