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BOILING WATER AND SERPENTS
food coloring into water, and freeze the water in an ice cube tray. After
the water is frozen, place one of the colored ice cubes in an aquarium
filled with water. Draw a picture of the cold currents indicated by the
flow of the color from the melting cube. From your observations, you can
infer that cold water is heavier than warmer water.
of the ocean varies by as much as 65 degrees
It used to
be thought that the water, south of the equator, was literally boiling,
and was infested by serpents. The old mariners would never sail south
of the equator because of their fears. Prince Henry, the Portuguese guy
who was the grandfather of navigation, dared to sail below the equator,
and found that there was no boiling water and the "serpents"
were basking sharks and other gigantic fish that liked warmer waters.
That was an extra little bonus of information for
need to research further to find out what the ocean
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