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The National Park Service brings you information on geologic time and how we tell the age of the Earth. Learn about fundamental geologic concepts, view a geologic time module, view a video on the Big Ideas in Geoscience, and look at fossils and rocks throughout geologic time.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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2
Published in 2010
Yosemite National Park is famous for its spectacular glacially carved landscape. Although glaciers have come and gone many times in the past, there are still two active glaciers near Yosemite's highest peaks. This video shows you the wonders of Yosemite's glaciers.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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3
Bring the Grand Canyon to your classroom using NPS distance learning programs. The programs cover a range of topics and grade levels: Ancient Life (fossils, grades 2-5), Ask a Ranger (geology, grades 4-8), Canyon Connections (plant/animal adaptations, grades 4-8), Condor's Flight (endangered...
Grade Level   2 3 4 5 6 7 8 9 10 11 12
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4
Geologic time can be difficult for people to understand. Our own lives are so short when we compare them to the age of the Earth, that the hundreds of millions of years of geologic time are almost too much to grasp. But for us to understand Earth activities today, we must have at least some basic...
Grade Level   5 6 7 8
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5
"There are many glaciers all over Alaska. Flying into Lake Clark National Park and Preserve through Lake Clark Pass, you will see many glaciers. These glaciers were growing during the last Ice Age. Now many are retreating because Alaska is getting warmer. As the glaciers melt they leave behind...
Grade Level   5 6 7 8 9 10 11 12
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6
We usually think of caves forming as rocks are dissolved and the particles are washed away, leaving hollow spaces behind. This activity simulates the way that dissolution, a chemical weathering process, leads to the formation of caves. When precipitation such as rainwater or snowmelt mixes with...
Grade Level   7 8 9 10 11 12
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