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Slideshow Transcript
- Slide 1:Icebergs from Antarctica
- Slide 2:Icebergs in the Antarctic area sometimes have stripes, formed by layers of snow that react to different conditions.
- Slide 3:Blue stripes are often created when sea water freezes so quickly in a crevice in the ice sheet that no bubbles form.
- Slide 4:A green stripe forms when an iceberg falls into algae-rich sea and a layer of water freezes to the underside.
- Slide 5:Brown, black and yellow lines are caused by sediment, picked up when the ice sheet grinds downhill towards the sea.
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- Slide 9:The water freezes in mid-air as the wave breaks through the ice.
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