Welcome back to Whiteboard Wednesday! In this tutorial our Geography teacher Tracy, covers a commonly asked topic on the Leaving Cert exam, the Rock Cycle. Tracy goes through an exam question from 2008 to demonstrate how to answer this type of question, and shows the steps you need to take to make sure you include enough 'significant relevant points' to secure the maximum marks.
To download your FREE set of notes on the Rock Cycle click here:
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Learn about the three different types of convergent boundaries.
Convergent boundaries create volcanoes, earthquakes, and deep trenches when the large tectonic plates made up of the lithosphere bump into one another.
Divergent plate boundaries occur when two tectonic plates move away from one another.
Divergent plate boundaries are considered constructive boundaries.
If you look at a map of the major tectonic plates you can see several divergent plate boundaries.
There are two major types of divergent boundaries.
Continental and continental lithosphere and oceanic and oceanic lithosphere.
An example of an oceanic and oceanic divergent boundary is the mid-ocean ridge.
The mid-ocean ridge runs around the world including going right through Ice land.
A famous example of a continental and continental divergent boundary is the African rift valley.
• Soil sometimes accumulates in a series of small ridges called terracettes.
• Soil piles up behind walls, causing them to bulge and break.
• Tree trunks and fences bend in the direction of soil creep.
• Poles may lean in the direction of soil creep.
A middle school lesson on plate tectonics theory for grades 6-8. #KAtalentsearch
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A quick overview of plate tectonics, including a look at the different types of plate boundaries; convergent, divergent, and transform.
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