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Boy, Oh Buoyancy!

Boy, Oh Buoyancy!
Reading Level
     edHelper's suggested reading level:   grades 3 to 4
     Flesch-Kincaid grade level:   5.28

Vocabulary
     challenging words:    afloat, cargo, density, displacement, freshwater, helium, hulls, saltwater, float, pools, cubes, hull, boat, however, liquid, holding
     content words:    Oh Buoyancy, Dead Sea, Northern Atlantic Ocean, Plimsoll Line

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Boy, Oh Buoyancy!
By Trista L. Pollard 		  
1     Boy, Oh Buoyancy!
 
2     

Float, float water boat,
How high do you float?
Salt water, fresh water, river water, sea,
How high can you float for me?

 
3     So how do ships and people float anyway? The answers are buoyancy and density. Buoyancy is when an object or being (that includes you) can stay afloat in a liquid (water) or a gas (air). This is why your ice cubes float in your lemonade, and helium balloons rise into the air. Density or weight can determine if an object floats or sinks.

Paragraphs 4 to 8:
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