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"geologic time" » "geological time", "geology time"
1
The Paleontological Research Institution serves society by increasing and disseminating knowledge about the history of life on Earth.
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2
Need a quick reference to the geologic time scale of Earth's history? Try out out Free geotimescale 2 app! Find out, for example, when dinosaurs ruled the world or when reptiles first appeared. This is an excellent reference for students, educators, professional geologists, or anyone interested in...
Grade Level   9 10 11 12
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3
Sample questions and answers from the GEOSC 20 Final Exam in 1996
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4
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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5
Published in 2012
Trilobites were distinctly related to crabs and lived in the sea from 526 million years ago until they became extinct 250 million years ago. There were many different species and 17-000 types of fossil trilobite have been found, ranging in size from only a few millimeters to more than half a meter...
Grade Level   6 7 8 9 10 11 12
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6
The New York Paleontological Society was founded as a forum to inform and educate its members and the public at large concerning the nature, interrelationships nd evolutionary development of all kinds of living things throughout geologic time , especially through the study of their fossils and...
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7
"This activity asks """"deep questions"""" about sedimentary structures to help pupils to visualize the environment in which they formed."
Grade Level   9 10 11 12
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8
By XKCD
This website provides a timeline of Earth's temperature beginning thousands of years ago, to the current and future times to show how much warming earth has encountered.
Grade Level   9 10 11 12
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9
Published in 2006
Fossils provide a valuable record of the plant and animal life and environmental conditions from millions, even billions of years ago. In this lesson, students create their own fossils, and then use multimedia resources to learn how real fossils form and what scientists can learn from them.
Grade Level   3 4 5
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10
Paleontologists are the geoscientists who discover and study fossil evidence of past life. Sometimes they even find the footprints of dinosaurs that roamed the surface of the Earth long ago. Ever wonder how paleontologists are able to determine, based on fossil evidence, whether a particular...
Grade Level   7 8 9 10
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11
Geologic Heritage encompasses the significant geologic features, landforms, and landscapes characteristic of our Nation which are preserved for the full range of values that society places on them, including scientific, aesthetic, cultural, ecosystem, educational, recreational, tourism, and other...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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12
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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13
In this investigation, you'll have the opportunity to learn about the many geological features in our country's national parks. You might not realize this, but a large number of the national parks were created because of their amazing geology. Just think of the geological features of Yellowstone...
Grade Level   6 7 8
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14
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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15
Follow along with host Kirk Johnson as he explores the layers of rock that make up the Grand Canyon, in this video from NOVA: Making North America: Origins. Many geologists think that the Grand Canyon is the best place in the world. Its exposed rock layers allow them to see hundreds of millions of...
Grade Level   6 7 8 9 10 11 12
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16
Explore classroom activities about dinosaurs, geologic time, plate tectonics, fossils, and more.
Grade Level   5 6 7 8
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17
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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18
In this game, you will see a series of five images showing the positions of earth's continents during different geologic periods. You will have two minutes to arrange them in the correct order.
Grade Level   9 10 11 12
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19
This activity has been devised to address the common lack of knowledge about geological time. Research has shown that many people have no idea of the great length of geological time nor of the order of key events during the geological history of the Earth. Students will make a geological timeline...
Grade Level   9 10 11 12
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20
At the close of the 18th century, the haze of fantasy and mysticism that tended to obscure the true nature of the Earth was being swept away. Careful studies by scientists showed that rocks had diverse origins. Some rock layers, containing clearly identifiable fossil remains of fish and other forms...
Grade Level   5 6 7 8 9 10 11 12
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