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What is a submarine? |
Transportation
A submarine is a special kind of boat that is able to go underwater! While most other boats are made to float, a submarine is made to do both: Travel on top of the water or beneath it.
Because they go underwater, a submarine is closed up on all sides so that the people inside don’t get drenched! In order to move down below the surface, submarines are built with special sealed compartments that open up and fill with water. This weighs the boat down so that it sinks. When a submarine is ready to come back up to the surface, its crew releases the water in these compartments so the boat is lighter again and floats back up!
Submarines are useful because they allow militaries to move around in the oceans without being seen. They’re also used a lot by scientists. By bringing them down under the water, researchers can study marine life that they’d never otherwise be able to see!
What is your favorite kind of boat? Do you prefer small boats, like canoes, or bigger boats, like yachts or cruise-ships??
Draw
a picture of yourself riding on your favorite kind of boat. What is the
name of the boat you are on? Where is the boat taking you? Who else is
with you on the boat?
Ask your friends and
family what kinds of boats they like. Do a lot of people say the same
thing, or does everyone have a different answer?
