Varve: a deposit of cyclical sediments that help scientists determine historical climates. Individuals analyze the topography of a region and then study varve datasets from the same area. Using this information, they determine the climate of that region 12,000 years ago. 

Concepts

sediment, climates, soil layers

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Additional Tags

science

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Instructional Ideas

• Place high schoolers in pairs or groups of three and model how to read a varve sequence 
• Find and share photos of varves so classes have a visual representation of the data

Classroom Considerations

• Activity assumes learners have some knowledge of glaciation in North America
• Use teacher reference link to learn more about varies and how to read the varve sequences

Pros

• Provides link with background information for both teachers and classes 
• Excellent critical thinking questions found on analysis worksheet

Cons

• None

Common Core

RST.9-10.3