Processes at constructive/divergent plate margins
I can explain the processes at constructive/divergent plate margins and the causes of earthquakes and volcanoes.
- Year 10
- AQA
Processes at constructive/divergent plate margins
I can explain the processes at constructive/divergent plate margins and the causes of earthquakes and volcanoes.
Lesson details
Key learning points
- Constructive/divergent plate margins involve two plates moving away from each other.
- Distinctive processes occur at constructive/divergent plate margins.
- Earthquakes and volcanic eruptions occur at constructive/divergent plate margins and have distinctive characteristics.
Keywords
Rift valley - a long, narrow depression formed when a tectonic plate stretches and fractures at a constructive margin, causing the land to sink between parallel fault lines
Shield volcano - a broad, gently sloping volcano formed by basaltic lava that is runny and flows easily. Eruptions tend to be effusive rather than explosive - lava flows out
Magnitude - a measure of the energy released by an earthquake; a higher magnitude means a stronger earthquake
Common misconception
Volcanoes only occur on land.
In fact, volcanoes occur underwater as well as on land, especially at constructive plate margins and hot spots.
Equipment
Content guidance
- Depiction or discussion of violence or suffering
Supervision
Adult supervision required
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What is the name of the theory that explains the movement of tectonic plates?
Q2.What is an example of a tectonic hazard?
Q3.What are the two main types of tectonic plate?
Q4.Which layer of Earth is made up of tectonic plates?
Q5.Where are most earthquakes and volcanoes found?
Q6.What was Pangea?
Assessment exit quiz
5 Questions
Q1.Match the lesson's keywords and their definitions.
