1
Published in 1997
This report illustrates how dinosaurs may have become extinct as a result of an asteroid impact. Students will better understand the mass extinctions that have been part of the Earth's history. Included are templates for making two paper models, instructions for their assembly, and a discussion of a...
Grade Level   6 7 8 9 10 11 12
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2
We know that the dinosaurs went extinct 66 million years ago. But what about other time markers in geologic history? How do we know what organisms lived in the past? How can we show geologic time? Geologic history is told through research done by scientists of the rock, sediment, and fossil records...
Grade Level   4 5 6 7 8
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3
Chapter 5 focuses on Prehistoric Earth, geologic time, and early lifeforms on this planet.
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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4
This activity book for students ages 5-12 (around grades K-7) from the National Park Service's Junior Paleontologist Program presents facts, photographs, and games alongside more than a dozen activities exploring Earth's history, ancient plants and animals, and the changes in environment over time....
Grade Level   K 1 2 3 4 5 6 7
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5
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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6
"Pairs of children model how scientists use craters to determine the ages of lunar surface. One child keeps time while the other creates a painting for the other to interpret. Cotton balls coated in different colors of paint are thrown at paper to simulate asteroids striking the lunar surface over...
Grade Level   3 4 5 6 7 8
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7
Children model how the Moon’s volcanic period reshaped its earlier features.  The children consider that the broad, shallow impact basins — which had formed earlier while it was a “kid Moon” — contained cracks through which magma seeped up. Children use Rice Krispies Treats® to create a...
Grade Level   5 6 7 8
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8
"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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9
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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10
Explore classroom activities about dinosaurs, geologic time, plate tectonics, fossils, and more.
Grade Level   5 6 7 8
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11
To describe Earth's vast history, scientists use a geologic timescale. They divide it into long segments of time called eras. Each era is further divided into periods. Working in a small team, you will create a poster presentation about one of the periods in Earth's history. You can use classroom...
Grade Level   6 7 8 9 10 11 12
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12
Published in 2005
Students may be able to tell you how long ago dinosaurs lived, but it is difficult to conceptualize that enormous amount of time. The following activity will help students gain an understanding of geologic time.
Grade Level   5 6 7 8
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13
The age of fossils intrigues almost everyone. Students not only want to know how old a fossil is, but they want to know how that age was determined. Some very straightforward principles are used to determine the age of fossils. Students should be able to understand the principles and have that as a...
Grade Level   8 9
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14
Telling the history of the earth requires placing events in sequence so that reference can be given to the relative and/or numerical time at which each event occurred. This helps to make sense out of the enormous expanse of time that has elapsed since the origin of the earth. This activity will help...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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15
"This hands-on activity requires students to """"visit"""" different K-T boundary sites, evaluate the evidence at each site, find these sites on a map, and predict where the crater is located. It tests a diverse set of skills, including mapping, mathematical scaling, and interpretation of mixed...
Grade Level   6 7 8 9 10 11 12
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