Discovery Education™ Prehistoric Earth VHS/DVD
Ever wonder how geologists know what happened on Earth billions of years ago?
Manufacturer: Discovery Education™ DC778613
Video covers the nature and divisions of geologic time, a variety of prehistoric life-forms, and how fossils reveal clues to Earth's distant past. Grades 3-6. Running time: 25 minutes.
- Explains the system used by scientists to describe and organize prehistoric time periods
- Discusses what modern scientists study to uncover facts about the past
- Chronicles events in the four major time periods (eras) within the geologic time scale: Precambrian, Paleozoic, Mesozoic, and Cenozoic
- Points out that each time period is marked by a significant change in the number or type of fossils that are found
- Explores what fossils reveal about Earth's history
|3 to 5|
|Prehistoric Earth DVD|
|Marc Record, Teacher's Guide|
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