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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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Published in 2018
Any evidence of past life preserved in a geologic context, such as within rock or sediment, is called a fossil. In this activity, you will work as a paleontologist -- a scientist who studies fossils to understand ancient landscapes, climate, and life on Earth — to find and identify fossils. The...
Grade Level   K 1 2 3 4 5 6 7 8
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3
"Unraveling time and the Earth's biologic history are arguably geology's most important contributions to humanity. Yet it is very difficult for humans to appreciate time beyond that of one or two generations, much less hundreds, thousands, millions and billions of years. Perhaps we can only hope...
Grade Level   5 6 7 8 9 10 11 12
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4
The JOIDES Resolution (JR) has physical dimensions unlike most oceangoing vessels. Why? So that scientists can sail nearly anywhere in the world to drill for samples of rocks and sediment from below the seafloor — in hopes of discovering clues about Earth’s history and structure, life in the...
Grade Level   5 6 7 8
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5
How do geologists understand the Earth’s history? In part, they measure the age of rocks and other natural materials by dating techniques. They can date rocks by gauging the amount of decay of radioactive elements. The time necessary for half of any given amount of one element (the “parent...
Grade Level   5 6 7 8 9
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6
Core samples are small portions of a formation taken from an existing well and used for geologic analysis. The sample is analyzed to determine porosity, permeability, fluid content, geologic age, and probable productivity of oil from the site. Drilling is the only way to be sure that oil and gas...
Grade Level   5 6 7 8 9
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7
This activity allows students to experience what rocks and minerals go through during the rock cycle. The activity explains how to manipulate chocolate using heated water and a knife into different states representing metamorphic, igneous, and sedimentary rocks. Chocolate can be ground into small...
Grade Level   3 4 5 6 7 8
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