The document provides instructions for a coastal cliff formation activity, asking students to use diagrams and explanations in complete sentences to describe how coastal cliffs are formed through the processes of wave erosion. It also asks students to predict what landform would form if the cliff continues retreating inland and provide a diagram and point form explanation of their prediction. Finally, it asks students to reflect in their geography journal on whether shore platforms are formed through erosion or deposition and explain their reasoning.
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Coasts: Cliffs and Shore Platforms
1. What's expected for today
1. Explain the formation of a coastal cliff with:
Diagram/s + explanation in complete sentences
80% accuracy
2. Predict what landform would be created if a
cliff keeps retreating inland.
2. Explain how this cliff is formed using diagrams and
complete sentences (10min).
Hunstanton, Norfolk
From tournorfolk.com.uk
3. Cliff: let's review
(use a different ink color)
Diagram/s: Fig. 7.13A-C on textbook p. 142 is
acceptable. You must have:
Labeled the diagram/s: Figure 1: Formation of a
coastal cliff
Labeled all features: land, sea, high tide, low tide,
notch/cave, overhang/roof, sediments, cliff
Draw dotted lines showing the previous state of
the rock face
4. Cliffs: let's review
Written explanations should REFER to the
diagrams, using phrases such as:
Figure 1 shows...
In Figure 1...
Looking at Figure 1
With reference to Figure 1
5. Cliff: let's review
Explanations must be
Gradually, these lines
written in complete enlarge to form a
sentences using notch at the foot of
the rock face.
these key phrases
and concepts:
As the waves
continues to undercut
Repeatedly the rock, the
pounding waves overhang/roof of the
causes lines of cave collapses,
weakness to form on forming a steep cliff.
the rock face.
6. Predict... (5min)
If the cliff continues to recede inland,
how would the coast look like?
Answer by drawing a diagram and writing in
point form.
7. Shore platform: let's find out
Explanations must be
Waves during the high
written in complete tide deposit
sentences using these sediments on this
surface after losing
key phrases and energy from friction
concepts: with the shallow
Further erosion causes surface.
the cliff to
This surface is only
recede/retreat inland. exposed during the
Eventually, a gently low tide and is the
sloping/flat surface shore platform.
may form at the foot of
the cliff.
8. Reflection (5min)
Answer this question in your Geography journal:
Is the shore platform formed by
erosion or deposition?
Why do you say so?