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Determining Relative Ages

Using certain principles it is possible to determine the relative ages of rock units and reveal the geologic history of the region.

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Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

Determining Relative Ages

How to determine the relative ages of rocks.

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Determining Relative Ages

by CK-12 //basic

How to determine the relative ages of rocks.

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Determining Relative Ages

How to determine the relative ages of rocks.

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Rock Formations, Fossil Evidence, and Relative Age S.6.3.2 (MS-ESS1-4)

How to determine the relative ages of rocks through evidence from rock formations and fossil evidence in the Earth's history.

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Determining Relative Ages

by Jim Doherty, Ph.D. //at grade

How to determine the relative ages of rocks.

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Determining Relative Ages 1.5

by Nancy Strand //basic

How to determine the relative ages of rocks.

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Determining Relative Ages

How to determine the relative ages of rocks.

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• Video

Law of Superposition

A video lesson on the law of superposition, which is used to determine the relative ages of rocks. Courtesy of bozemanbiology.

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• Lesson Plan

Understanding Geologic Time Lesson Plan

Students take an informational tour to gain a basic understanding of geologic time, the evidence for events in Earth’s history, relative and absolute dating techniques, and the significance of the Geologic Time Scale.

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• Practice
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Determining Relative Ages Quiz - MS ES

by CK-12 //basic

Reviews how to determine the relative ages of rocks.

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Determining Relative Ages Quiz

Quiz on Determining Relative Ages

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• Critical Thinking

Determining Relative Ages Discussion Questions

A list of student-submitted discussion questions for Determining Relative Ages.

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Determining Relative Ages Pre And Post Read

To predict the main ideas of the text based on context clues, to generate questions about a given topic and to organize and review the knowledge learned about the topic using the SQ3R strategy.

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Determining Relative Ages Double Entry Diary

by CK-12 //basic

Connect your daily life experiences with specific points in a reading using a Double Entry Diary.

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• Real World Application

John Day Fossil Beds

by CK-12 //basic

The John Day Fossil Beds in eastern Oregon have a weath of fossils that span a long period of time. The relative ages are well constrained becauase a volcanic ash has been radiometrically dated.

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• Real World Application

The Grand Staircase

Explores the rock units of the Grand Staircase and the geologic history they reveal.

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• Real World Application

Knowing Ancient Earth

Learn about the Precambrian rocks of the Grand Canyon Supergroup and what they reveal about the ancient Earth.

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• Study Guide

Determining Relative Ages Study Guide

This study guide summarizes the key points of Determining Relative Ages. You can download and customize it to suit your needs and study habits.

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Understanding Geologic Time

by CK-12 //basic

An interactive slideshow about geologic time.

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• Flashcards

Determining Relative Ages Flashcards

These flashcards help you study important terms and vocabulary from Determining Relative Ages.

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