Lesson 4

Lesson Objectives...

• Develop a model showing what is happening at a scale larger than we can see (patterns) to help explain what happened to the different mountains to (cause) them to change (in elevation and/or location).

• Ask questions that arise from our analysis of information showing that Mt. Everest and four other mountain peaks are changing to seek additional information about what caused the changes (effects) we read about.

Resources for Lesson 4...

Argue for what happened to bedrock under the surface at Ridgecrest, California... pink foam model

Classroom Model of a Cross Section of the North American Plate

Seismic Explorer - Cross Section Earthquake Data

What we figured out in this lesson...

• Sections of bedrock in between these fault lines of cracks from earthquakes are called plates. (Lesson 4)

• The cracks must go really far down into and through the bedrock to where the rock begins to creep, shift, and move. (Lesson 4)

• There is evidence of at least two really large and long crack lines on either side of most of the United States.     (Lesson 4)

• There are other plates in the world that can be found in between long lines of fault lines. (Lesson 4)