Transcript Glaciers powerpoint

How are they made?
 A glacier begins when snow
doesn’t completely melt
away during the summer.
Each with new snow falls on
top of the old snow. Thick
layers of snow are gradually
compressed into glacial ice.
 Glaciers grow and shrink in
response to climate
Interactive Song
Vocabulary!
 Glaciology - the study of glaciers
 Glaciologist - a scientist who studies glaciers
 Glaciers- Huge masses of ice
 Ice Calving- the sudden release and breading away
of a mass of ice from the glacier
 Iceberg- A huge chunk of ice floating in the ocean
they come in small, medium, and large.
 Snout - the end of a glacier
 Firn - older snow
Huge masses of ice
Glaciers
Glaciologist
Doing
work!
Calving
snout
The layers of old snow
Firn
Small bergs
 a little smaller than a car
 known as “growlers,”
larger bergs
 about the size of a house
 Called ”bergy bits.”
Facts!
 10% of land on Earth is
covered with glacial ice
 Glaciers store about
75% of the world's
freshwater.
 During the last ice age,
glaciers covered 32% of
the total land area.
• The tallest known
iceberg in the North
Atlantic was 550
feet (168 m) above
sea level.
References
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http://beyondpenguins.ehe.osu.edu/issue/icebergs-and-glaciers/all-about-icebergs
http://kids.britannica.com/elementary/article-353281/Iceberg
http://en.wikipedia.org/wiki/Ice_calving
http://www.neok12.com/Glaciers.htm
http://kids.discovery.com/tell-me/curiosity-corner/earth/in-the-ocean/what-are-glaciers
http://www.onegeology.org/extra/kids/earthprocesses/glaciers.html
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