Lesson 7

What happens at mountains where we see volcanic activity?

Lesson Objectives...

Apply scientific ideas and evidence to construct an explanation for the processes that cause some of the large scale interactions of Earth’s plates that result in the effects (volcanoes) of those interactions.

6.4 Lesson 7 - Slides

Slide Presentation for Lesson 7...

This is the slide presentation used by your teachers when navigating through Lesson 7.

Active Volcanoes and Volcanoes that have Erupted since 1980

Active Volcanoes and Volcanoes that have Erupted since 1980 with Earthquakes since 1980

Plate Boundaries and Plate Movement

Plate Boundaries and Plate Movement with Active Volcanoes and Volcanoes that have Erupted since 1980

Lesson 1 - Reference - Data Cards on Other Mountains and Mt Everest

6.4 Lesson 7 - Reading - How are volcanoes formed and What kinds of changes do they cause?

Volcanoes occur in some of the same places where earthquakes occur. (Lesson 7)
Volcanoes occur in lines where an oceanic plate collides with a continental plate. (Lesson 7)
When a more dense oceanic plate collides with a less dense continental plate, the oceanic plate moves under the continental plate. (Lesson 7)
The portion of the oceanic plate that moves below the continental plate begins to heat up, causing the bedrock and sediments to melt and the water in the sediments to boil. (Lesson 7)
The melted earth materials and steam move upward through openings called volcanoes, in the continental plate. (Lesson 7)
Volcanic eruptions can cause mountains to grow in height when new earth material is added, or shrink when existing earth material is scattered. (Lesson 7)

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