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By Samantha E. How much can it float?

Samantha e

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Page 1: Samantha e

By Samantha E.

How much can it float?

Page 2: Samantha e

My question?I wanted to find out which type of boat hull could hold the most weight? And also if the volume of the boats makes a difference.

My boats in the bathtub

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My hypothesis is:

I think the square hull willhold the most. I don’t think volume matters that much.

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So here is what I did.

First I had to think of 3 different shapes to make my boats. Then I built them out of aluminum foil and scotch tape. The foil represents the steel that a real ship would be made of. Then I had to find the volume of each boat. I did this by using the dry rice method. That means I filled each boat with dry rice, then dumped it into a measuring cup to find out how many milliliters it was. Then I found the buoyancy of each boat by putting pennies in them one by one until they sank. Here is what happened.

Using the dry rice method to find volume.

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My v shaped boat.

My V shaped boat has a volume of 525ml. The buoyancy of it is 65 pennies.

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My u shaped boat.

The volume of the U shaped boat is 700ml. The buoyancy of the boat is 72 pennies.

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My square boat.

The square boat has a volume of 600ml.The boat has a buoyancy of 157 pennies.

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And the winner is…..

The Square boat wins!!

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The ResultsMy hypothesis about the square boat was right! It held the most weight. It did not have the highest volume either. So I guess more volume doesn’t mean it will hold more. I really liked building these boats and making them sink. I also learned that buoyancy is the ability of something to float in liquid. And to make something float it has to be less dense than the liquid.

My graph of the results.