Guide 7A
Geologic Time
Travel back to the beginning of life on Earth.
In this guide you will explore long passages of time, including the age of the dinosaurs.
Video Overview
Watch this guide overview video; you can select the closed captioning “cc” option if you would like to see the text.
Geologic Time Contents
Complete all five of these sections before taking the quiz and submitting your media piece.
Geologic Time Objectives
Geologic Time
Describe how researchers study early earth, including stratigraphy and geochronology.
Precambrian
Provide the approximate time span, geologic changes, and representative organisms of the Precambrian Supereon.
Phanerozoic
Provide the approximate time span, geologic changes, and representative organisms of the Phanerozoic Eon, including the Paleozoic, Mesozoic, and Cenozoic Eras.
Dinosaurs
Tell the dinosaur story including evolutionary origins, structural features, major taxonomic groups, new avenues of research, and theories for their extinction.
Tentative and Durable
Explain how scientific knowledge can be both tentative and durable, providing examples of knowledge that exemplifies both of these characteristics.
Geologic Time Product Page
If you would like the goal insight of looking ahead to the products you will be making after completing this guide’s five activity pages, start with the product page.
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Research Question 7: How long has it been here?
