Earth's Systems
aligned to Analyze And Interpret Evidence Regarding The Theory Of Plate Tectonics, Including Geologic Activity along Plate Boundaries And Magnetic Patterns In Undersea Rocks, To Explain The Ages And movements Of Continental And Oceanic Crusts.
Learning Objective
I can analyze evidence, such as magnetic patterns in undersea rocks, to understand how continental and oceanic crusts move and change over time.
Lesson Flow
Watch Video
The Plate Tectonics Revolution: Crash Course Geography #19
CrashCourse
Practice
7 questions • Short answer
Exit Ticket
“Describe how the magnetic patterns found in undersea rocks provide evidence for the process of seafloor spreading. Explain how changes in Earth's magnetic field polarity are recorded in undersea rocks and what this reveals about the movement of oceanic crust over time. If a symmetrical pattern of magnetic stripes is observed on either side of a mid-ocean ridge, what can you infer about the rate and direction of plate movement?”
Teacher Guide
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