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Video // Beg I Pre-int // How Do Boats Float
J** 2023-03-09 오후 11:09:02 181



How Do Boats Float



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Vocabulary:
1.Density - is the measurement of how tightly a material is packed together.
2.Denser, densest. Synonyms of dense = marked by compactness or crowding together of parts
3.Sink = go down below the surface of something, especially of a liquid; become submerged.
4.Figure out = solve a problem or discover the answer to a question.
5.Gravity = the force that attracts a body toward the center of the earth, or toward any other physical body having mass. Questions:
1.Who is Archimedes and what did he decide to figure out?
2.What is density?
3.What happens when something enters the water?
4.What happens to a boat when it weighs less than the water?
5.Why do rocks sink?
6.What makes the ship stay afloat?
7.Have you ever wondered how a ship floats? Share the knowledge that you have got.

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