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I will suggest coating the bottom of the boat with tape and make sure u tape the angls and make sure there are no holes in the boat. also coat the inside and add another layer of cardboard to the boat preferbly slightly smaller then the bottom of the boat. SIGNED DORIAN CLARK. hope this helps

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Q: How do you make a cardboard boat float?
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How does cardboard float?

If you cut a bit of it there is a flat surface and then ridges of cardboard of top. The little ridges have air trapped in them, which causes the cardboard to float.


How can you make a ball of clay float?

by making a boat and that way a boat can float anytime in water


What can you make a boat out of that will float?

anything you want that can float. You can be creative.


How do you make a boat that sails by the wind and float in water?

Depends. If it's a toy boat, you find something that float: plastic, cardboard, lightweight wood etc. Then, you take a two small sticks and attach like and L. Turn the L around, and then attach a piece of cloth onto it. Then attach the sail to your boat. To make a real boat, big or small, the simplest way is to make a regular boat (preferably wood), and then maker the sail thing again, and attach it onto the boat.


What is the easiest way to make a cardboard boat go faster?

put a point in the front of your cardboard boat and paddle really fast but pace yourself


Can you make a penny float?

Put it on a boat?


What is the key to making a boat float?

The key to make a boat float is that the boat should weigh less (or have less mass) than the water it displaces.


How do you make metal float but not on water?

I can make a iron nail float. Simply melt some lead and the iron will float on top of the lead. Your question seems to be with regard to how do Boats float and the answer is Bouyancy. The Boat displaces a volume of water and if the weight of the displaced water is less than the weight of the boat, the boat will float.


Does an empty cardboard box sink or float?

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