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	Icebergs are big.				Pieces of ice that form on land, and then float off into an<br>ocean or lake, are called icebergs.									
	They are pieces of ice that float in water.				They come in a variety of sizes.<br>									
	They<br>are found in lakes.				But, the term iceberg only refers to chunks of ice larger than sixteen<br>feet across.									
	They are found in oceans.				Yet, the iceberg we see is just a small part of these icy<br>chunks.									
	Icebergs come in many<br>sizes.				Up to 90% of each iceberg's mass is underwater.									
	They must be wider than sixteen feet across.				<<<<, 800, 0									
	If they are any<br>smaller, they are not icebergs.				Smaller icebergs have funny nicknames.									
	We only see the top of icebergs.				They're often referred<br>to by ship workers as bergy bits or growlers.									
	Most<br>of an iceberg is hiding under water.				So, the next time you<br>want ice for your soda, say to your mom, "Can I have a growler?"<br>									
	We hardly see any of it!				She won't know what you're talking about.									
	<<<<, 800, 0				But, you will.									
	Do you have a nickname?				<<<<, 800, 0									
	Small icebergs do!				To be sure, small icebergs are the most dangerous.									
	They are called<br>bergy bits.				They are<br>tough to spot in the water, at times.									
	They are called growlers.				When ships crash into them,<br>they can cause lots of damage.									
	Sailors named them.				In fact, icebergs have sunk many<br>vessels in the history of sea travel.									
	These are<br>funny-sounding names.				<<<<, 850, 0									
	Imagine the next time you have a drink and<br>want an ice cube to make it cold.				The most famous incident is the sinking of the Titanic--a huge<br>passenger boat.									
	Ask your mom, "Can I have a<br>growler?"				It sunk near Newfoundland in the year 1912.									
	She won't get the joke.				Hollywood<br>even made a big budget movie about it.									
	But, you will.				That's right--one of the most<br>successful flicks of all is about an iceberg taking down a ship!									
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	Small icebergs are the worst.				Icebergs form when chunks of ice break from glaciers or<br>ice shelves.									
	They are a danger.				They begin in the North Atlantic or Antarctica.									
	Why?				And,<br>in case you're wondering, sometimes penguins do live on<br>icebergs.									
	They<br>are harder to see.				But, they can't do so for long.									
	Ships hit them.				<<<<, 840, 0									
	This can break a ship apart.				After a while, icebergs drift and travel with ocean currents.									
	The<br>ship could sink!				On<br>occasion they will even smash up against shore in seaside communities.<br>									
	In fact, Icebergs have sunk many ships.				Of course, when icebergs reach warmer waters, they melt into liquid.<br>									
	<<<<, 800, 0				This, in turn, slowly raises the level of the sea.									
	A famous shipwreck is "The Titanic."				<<<<, 800, 0									
	It was a very big ship.				Icebergs are clearly a danger to sea travelers.									
	It<br>was huge!				So, what can<br>people do to help stop tragedy from happening?									
	It held lots of people.				It turns out the<br>"International Ice Patrol" uses airplanes and radar signals to track<br>icebergs.									
	It hit an iceberg in the Atlantic<br>Ocean and sunk.				They are often able to warn ocean liners of these<br>hazards ahead of time.									
	This happened at night.				<<<<, 800, 0									
	The year was 1912.				This helps boats around major shipping lanes steer away from<br>icebergs.									
	That's<br>over 100 years ago!				Also, the "U.S. National Ice Center" uses satellite data to<br>watch icebergs.									
	Movies were made about it.				But, they only track lumps of ice larger than 5,400<br>square feet.									
	Are you a movie<br>star?				It takes the effort of many people to keep ocean travel<br>safe from these chunks of frozen water.									
	Not yet, right?				<<<<, 840, 0									
	But, icebergs are!				Our planet is slowly becoming a warmer place to live.									
	<<<<, 800, 0				That means<br>more icebergs are breaking away than ever.									
	Icebergs start as part of glaciers.				As this trend continues,<br>expect to hear a lot more news about icebergs in the future.									
	Glaciers are sheets of thick<br>ice on land.				<<<<									
	Icebergs are chunks of ice that break off from glaciers.<br>													
	Some break off near the North Pole--the Arctic.													
	Some break off<br>near the South Pole--the Antarctic.													
	These are very cold places.													
	Do<br>penguins live on icebergs?													
	Yes, but they can't for long.													
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	Icebergs float away.													
	They move with currents.													
	Some icebergs<br>go far.													
	Some float into harbors.													
	Some smash into shore.													
	In warm<br>waters, they melt--as all icebergs do.													
	This makes the sea level rise.													
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	Icebergs are a risk.													
	Ships must be careful.													
	Sailors must watch<br>out for them.													
	But, they have help.													
	The "International Ice Patrol"<br>helps.													
	It is a group that tracks icebergs.													
	They use planes.													
	They use<br>radar.													
	They warn ships.													
	That way, ships miss icebergs.													
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	The "U.S. National Ice Center" helps too.													
	They also watch for<br>icebergs.													
	They use satellites to do so.													
	But, they only track really<br>big ones.													
	Both groups help to keep the sea safe.													
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	Our planet is slowly warming up.													
	This will likely cause more<br>glaciers to melt.													
	In turn, this will make many more icebergs.													
	You<br>can count on hearing a lot more about icebergs, in the future.													
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