Transcript Plate Tectonics - BSHYear7Geography

Earthquakes
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Unit learning objectives
Learning objective
Beginning
Developing
Mastering
I can describe the structure of the earth, and explain how
tectonic plates move
I can give examples of different plates and different types of plate
boundary and explain the processes happening there
I can use atlas maps to locate tectonic plates and earthquake
zones
I can use different types of maps, globes, atlases, and GIS to
locate and describe the physical and human geography of
earthquake zones.
I can use geographical terminology associated with tectonic
processes
I can compare earthquakes in different locations using statistical
techniques
I can use specific case study detail to explain the effects of an
earthquake
I can compare earthquakes in different locations using specific
case study information
I can explain why people live in hazardous places, and what they
can do to reduce the risks
I can determine how great a hazard earthquakes are in different
locations
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Plate Tectonics
I can describe the structure of the earth, and explain how tectonic plates move
Icons key:
For more detailed instructions, see the Getting Started presentation.
Flash activity. These activities are not editable.
Accompanying worksheet.
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Printable activity.
Teacher’s notes included in the Notes Page.
Useful web links.
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2008
History of the Earth
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More than ever
We know more about the Earth than we ever have before.
Scientific advances have significantly
changed our knowledge of the
structure of the Earth.
We can now say:
what the structure of the
Earth is
how the Earth has
changed over time
what might happen to the
Earth in the future.
Do we know everything about the
Earth’s structure and its history?
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https://www.youtube.c
om/watch?v=Q9j1xGa
xYzY
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What
is
the
Earth
made
What is the Earth made
from?
from?
By the end of this section, you will:
Be able to identify what the
Earth is made of.
Understand how these
layers fit together.
Learn more details about
the Earth’s structure.
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Looking into the Earth
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Across the Earth
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Split / Fractures
Exploited by CC
Lava continuously
pouring out
Basalt
Diverging
convection
currents
Molten magma
rising up
http://www.youtube.com/watch?
v=MmMX83diwl0
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Structurally sound?
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What is
What is plate
plate
tectonics?
tectonics?
By the end of this section, you will:
Know what is meant by the
term plate tectonics.
Know what continental drift
is and how it affects Earth.
Be able to identify and
name the major plates.
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Earth 100 Million Years From
Now
• https://www.youtube.com/watch?v=uGc
Ded4xVD4
Think, pair, share
What questions does
this video clip give us?
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Continental drift
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Evidence for continental drift
It was not until the 1960s that the theory of continental drift
became accepted by the scientific community.
Some continents fit together
almost perfectly, e.g. South
America and Africa.
Similar fossils can be found on
different continents. This shows
these regions were once very
close or joined together.
Almost identical patterns of rock layers on different
continents is evidence that the rocks were once close
together or joined.
Why are the continents moving?
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What is plate tectonics?
In the 1960s geologists used surveys of the ocean floor to
explain continental drift with the theory of plate tectonics.
The Earth's surface is made up of a number of large
plates that are in constant, slow motion.
The ocean floors are continually moving, spreading
from the centre and sinking at the edges.
The edges of these plates – plate boundaries – are
where earthquakes and volcanoes occur.
Convection currents in the mantle move the plates.
The plates ‘float’ on the mantle and move around the
Earth’s surface.
How do the plates actually move?
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Why do the plates move?
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Plate names
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Conservative plate boundary
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Conservative order
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Plate definitions
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Summary activities
Summary
activities
By the end of this section, you will:
Know the key points of
plate tectonics.
Understand important
words and phrases relating
to plate tectonics.
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Summary quiz
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Glossary
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Anagrams
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