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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.
This is an image of the surface of Io.
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NASA

Can there be Life in the Environment of Io?

In spite of the fact that Io has an atmosphere, the environment of Io seems pretty unfriendly toward life as we know it on earth.

Io is very small, so there is not much gravity. For this reason, the atmosphere of Io is constantly drifting away. If it were not for the volcanic eruptions, there would be no atmosphere at all.

Io is inside the enormously powerful magnetosphere of Jupiter. With very little atmosphere, there is little protection from the radiation of the charged particles of the magnetosphere.

With little atmosphere, there is hardly a buffer between the surface and space itself. This means that the temperature above the surface is very cold. On the other hand, with all the volcanos, the surface of Io is frequently molten, therefore the surface itself is sometimes super-hot!

All together these things add up to a very hostile environment for life as we know it.

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Traveling Nitrogen is a fun group game appropriate for the classroom. Players follow nitrogen atoms through living and nonliving parts of the nitrogen cycle. For grades 5-9.

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