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| Focus: Explain erosion of sand dunes, ways to reduce erosion and reasons for conservation of dunes. | ||||||
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Questions / instructions: |
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%
responses
|
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|
y4
|
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| 1. What is eroding the sand away? Why is the sand dune getting smaller? |
a
|
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| a | Wave action: |
identified
and explained
|
9
|
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|
identified
only
|
43
|
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| Wind action: |
identified
and explained
|
3
|
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|
identified
only
|
22
|
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| People removing sand |
10
|
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| 2. What can be done to help protect the sand dune so that it doesn't keep on getting smaller |
a
|
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| a | Identifies use of a barrier: |
with
explanation
|
4
|
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|
without
explanation
|
45
|
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| Identifies
ways of holding together: (eg planting) |
with
explanation
|
0
|
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|
without
explanation
|
8
|
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| 3. Why is it important to look after our sand dunes? |
a
|
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| a | a |
plant
or animal ecology
|
12
|
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|
protection
of land behind dunes
|
9
|
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|
recreational
value
|
25
|
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|
visual
landscape
|
6
|
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|
other
good reason (eg. heritage)
|
22
|
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| Commentary:
More than half of the students identified at least one erosion process, but few could explain the processes clearly. About half suggested barriers to reduce erosion with only eight percent suggesting planting. |
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