Jeff

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ICE AGE
A presentation on how the Ice Age effected us and
the world
Natasha Spadafora Ashley Mollard Jeff Galad
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(No Transcript)
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ICE AGE
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ICE AGE
What youll learn
What is an ice age?
How ice ages form?
When/why they occur?
Interesting facts
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ICE AGE
What is an Ice Age?
A cold period marked by episodes of extinctive
glaciations alternating with episodes of relative
warmth.
An ice age is a relatively cool period in Earth
history, when vast ice sheets cover much of
Earths land surface. There have been at least
five major ice ages during the last billion
years. The most recent ice age began 2.5 million
years ago.
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ICE AGE
How Ice Ages form?
- During the Quaternary Period high latitude
Winters have been cold enough for snow to
accumulate excessively .
- During this time the summers are cold because
the Sun is at its farthest point in the Earths
orbit.
- This means that the snow never melts from the
other winters.
- This will go on for centuries and ice sheets
will begin to form.
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ICE AGE
- Ice ages have occurred about two million years
ago which had cold (glacial), and relatively warm
(interglacial phases)
When/why do Ice Ages occur?
When
- The most recent ice age was about 70 thousand
years ago and ended about 10 thousand years ago.
- About 97 of Canada was covered by ice.
- The thickest areas of ice was in Hudson Bay
with approximately 3,300 meters deep.
- Currently we are in an interglacial phase that
will last another 10 000 or more years
- INTERGLACIAL A comparatively short period of
warmth during an overall period of glaciations.
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ICE AGE
97 of Canada was covered!
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ICE AGE
- There are four major factors why we have Ice
Ages
Why
- 1, The earths axis is wobbly, much like a
spinning top thats wobbles after it slows down.
This wobble can go up to 23.5 degrees on either
side of the axis. Depending on the tilt depends
on the amount of sunlight going into different
parts of the earth.
- 2, The greater the tilt, the stronger the
difference in seasons. (i.e., more tilt equals
sharper differences between summer and winter
temperatures.
- 3, This process takes over 41 thousand years.
- 4, This also changes the earths path on its
elliptical path. The process is called
precession of equinoxes. This process takes
23,000 years to complete. During this time the
ice sheets would form.
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ICE AGE
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ICE AGE
Glacial Cycle
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ICE AGE
Interesting Facts

• Animals that lived through the ice age
• Wolly Mammoths
• Saber Toothed Cats
• Coelodonta
• Deodircurus
• Elasmotherium
• Glyphtodon
• Smilodon

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ICE AGE
Interesting Facts
Believe it or not Humans actually lived though
the Ice Age. Many lived in caves where they have
left stone relics. They would communicate using
signs and symbols. Mostly they would eat stuff
they would hunt or plants they could find.
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So
That was good Eh?
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Well guess what!!
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We aint done yet!!
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Hope you were paying attention because its time
for a QUIZ!!
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QUESTION 1
Q Define ICE AGE
A An ice age is a relatively cool period in
Earth history, when vast ice sheets cover much of
Earths land surface.
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QUESTION 2
Q How many mice did the Fairy Godmaother turn
into horses in Cinderella?
A FOUR!
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QUESTION 3
Q Name one reason ice ages formed
A - During the Quaternary Period high latitude
Winters have been cold enough for snow to
accumulate excessively . - During this time the
summers are cold because the Sun is at its
farthest point in the Earths orbit. - This
means that the snow never melts from the other
winters. - This will go on for centuries and ice
sheets will begin to form.
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QUESTION 4
Q In the novel night, who was the lead character
and narrator and author?
A Elie Wiesel
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QUESTION 5
Q What percentage of Canada was covered by the
ice age?
A 97 was covered by ice.
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QUESTION 6
Q Finish this song lyric I dont mind spending
every day Maroon 5
A Out on your corner in the pouring rain Look
for the girl with the broken smile Ask her if
she wants to stay awhile And she will be loved
She will be loved
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QUESTION 7
Q What is the capital of Illinois
A Springfield
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QUESTION 8
Q DEAD OR ALIVE? Ringo Star (Beatles)
Q Alive and Kicking
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QUESTION 9
Q Figure out this math equation 9 6 x (8 -
4)
Q 33
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QUESTION 10
Q Where was the thickest point of ice and how
thick was it?
A Hudson Bay and it was 3,300m deep
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CONGRATULATIONS TO THE WINNING TEAM
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Natasha, Ashley and Jeff hope you enjoyed their
presentation on ICE AGE and we hope you have
learnt something. Thanks for being a great
audience and ICE ICE BABY!