Plate Tectonics Cycle - Earth's Moving Force
by J.R. Blueford
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1 |
2 |
3 |
4 |
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6 |
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Volcanoes |
Volcanoes Produce Rocks |
Volcanoes have Definite Shapes |
Products of Volcanoes |
Creating Rocks from Lava |
3 Basic Types of Volcanoes |
Volcanoes produce Different Rocks |
Location of Volcanoes |
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Earthquakes |
Shaking during an Earthquake |
Earthquakes Release Energy |
Earthquake Faults |
Seismic Waves cause Damage |
Measuring Earthquake Intensities |
Wave Movements and Seismograms |
Dividing the Earth by Waves |
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Plate
Tectonics |
Continents and Oceans |
Moving Continents |
Evidence from Continents |
Pressure in the Earth |
Diverging, Converging, Transform Boundaries |
Crustal Movement |
Definition of Plate Boundaries |
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Hazards |
Earthquakes and Volcanoes cause Damage |
Volcanic Eruptions |
Where of you go for Help? |
Historical Damage (Volcanoes) |
Damage during Earthquakes |
Mudslides and Volcanoes |
"Earthquake Proof" Structures |
In
the Plate Tectonic Cycle students learn that the Earth is dynamic as it spins on
its axis, revolving around the Sun. The Earth is restless inside, as it tries to
cool its interior. Material inside the Earth can become viscous and can flow in
certain areas. Movement in portions of the Earth's interior is reflected on the
outside crust. Convection currents inside the mantle (area between the crust and
the outer core) create 2 types of crustal movements. When convections currents
come together, convergent plate boundaries (earthquakes) are formed on the
Earth's crust. When the convection currents pull the crust apart in two
different directions divergent plate boundaries (volcanoes and earthquakes) are
formed. A consequence of the Earth's surface moving faster along the equator
than at the poles creates tension which in part, helps forms transform
boundaries.
Volcanoes - The Earth is moving and volcanoes provide structural evidence. Students learn about the different types of volcanoes and the significance of where they occur.
Earthquakes - The moving Earth also creates earthquakes. However when an earthquake occurs it is just a release of energy that occurs for only a short period of time.
Plate Tectonics - The data collected from volcanoes and earthquakes allows scientists to understand that our Earth is moving in a very directed motion.
Hazards - Students need to be aware that all around the world there are risks involved with earthquakes and volcanoes.
Rock Cycle - Understanding the Earth's Crust