Key question: What on earth is
glaciation?
L.O. To understand that Britain was once covered in ice
To understand how glaci...
Glaciation
A glacial period is when
ice advances and
temperatures fall, we call
this an ‘Ice Age’.
When we have warming,
t...
GCSE exam question
Describe the changes in global temperatures shown in Figure 1.
...........................................
Model Answer
Temperatures fluctuate, but generally they have …………………………
Specifics?
Exceptions?
Lesson Objective: What on e...
Lesson Objective: What on earth is glaciation?
Ice coverage
in British
Isles during
last Ice Age
Map showing the extent of the ice over the UK 18 000
years ago
Ice margin
ICE
MOVEMENT
Surbiton
1. Draw the
extent
of the ...
Can you complete this….or write your own
• During the last ___ ___ (about 10,000 years ago)
one third of the ______ and th...
Present day ice coverage
Ice now covers 10% of the world’s surface. Today there are two large
areas of ice in the world. T...
What is a Glacier? Video clip (from 5.55-8.00)
• Put the
boxes
in the
correct
order!
R. All the weight of
the ice pushes t...
You’re the teacher….
• Using the mini whiteboards and this
photo, without looking at your notes, can
you describe how a gl...
Lesson Objective: What on earth is glaciation?
Make a snowflake……
The south Cascade glacier in
Washington State USA has
been monitored by
geologists for over 40 years.
G...
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L1 introduction to glaciation2012 ap copy

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L1 introduction to glaciation2012 ap copy

  1. 1. Key question: What on earth is glaciation? L.O. To understand that Britain was once covered in ice To understand how glaciers are formed
  2. 2. Glaciation A glacial period is when ice advances and temperatures fall, we call this an ‘Ice Age’. When we have warming, the ice will retreat. These are called interglacial periods. Figure 1. Lesson Objective: What on earth is glaciation?
  3. 3. GCSE exam question Describe the changes in global temperatures shown in Figure 1. ............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. ............................................................................................................................................. (4 marks) Lesson Objective: What on earth is glaciation? THINK GSE;G eneral – What is generally happeningS pecifics – data from the graphs E xceptions – what year, country etc are the exceptions, if any?
  4. 4. Model Answer Temperatures fluctuate, but generally they have ………………………… Specifics? Exceptions? Lesson Objective: What on earth is glaciation?
  5. 5. Lesson Objective: What on earth is glaciation? Ice coverage in British Isles during last Ice Age
  6. 6. Map showing the extent of the ice over the UK 18 000 years ago Ice margin ICE MOVEMENT Surbiton 1. Draw the extent of the ice, during the last ice age on your map 2. Label Surbiton too Lesson Objective: What on earth is glaciation?
  7. 7. Can you complete this….or write your own • During the last ___ ___ (about 10,000 years ago) one third of the ______ and the majority of the _______ was covered in ___. • Since then, the climate has become _________ and most of the ice has melted away. UK warmer ice age world ice
  8. 8. Present day ice coverage Ice now covers 10% of the world’s surface. Today there are two large areas of ice in the world. The largest is Antarctica and the other Greenland. There are some smaller areas of ice, in Iceland and in mountainous areas. Often these are small fingers of ice, which we call glaciers. Can you identify these mountain ranges??
  9. 9. What is a Glacier? Video clip (from 5.55-8.00) • Put the boxes in the correct order! R. All the weight of the ice pushes the glacier down the mountain C.The new layers of snow compact last years layer A. It snows again next winter L. The spring and summer are cold so the snow doesn’t melt G. Snow collects throughout the winter I. Air is therefore squeezed out if the snow – turning it to ice. E. With no air the glacier turns a strange blue colour Lesson Objective: What on earth is glaciation?
  10. 10. You’re the teacher…. • Using the mini whiteboards and this photo, without looking at your notes, can you describe how a glacier forms? Lesson Objective: What on earth is glaciation?
  11. 11. Lesson Objective: What on earth is glaciation?
  12. 12. Make a snowflake…… The south Cascade glacier in Washington State USA has been monitored by geologists for over 40 years. Glaciers are found in every continent in the world Glaciers can move up to 30cm a day during ‘surges’. Homework cover your snow flake in interesting facts about glaciers and bring a mini mars bar to next lesson! Lesson Objective: What on earth is glaciation?

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