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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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Will a cardboard boat float with 225 pounds in it?

It is possible for a cardboard boat to float with 225 pounds in it, but it depends on the design, construction, and quality of the materials used. It's important to test the boat's buoyancy and stability before putting any weight in it to ensure safety.


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.


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


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.


Can cardboard float?

Cardboard can float in water depending on its thickness and density. If the cardboard is thick and has low density, it is more likely to float. However, if it is thin and has high density, it may sink.


Does an empty cardboard box sink or float?

It will float until the cardboard becomes saturated and eventually sinks.


What is the best boat shape to make it float?

round


How do you make paper float?

fowlled it into a sail boat.


What were three scientific problems that the boy had to solve?

The boy had to solve the problem of creating a volcano model that erupted realistically, determining the best material for a boat to float the longest, and figuring out how to make a cardboard rocket fly the farthest.


How does an empty cardboard box float?

An empty cardboard box can float because of its shape and the material it is made of—cardboard is lightweight and has air pockets that provide buoyancy. When placed in water, the box displaces water equal to its weight, allowing it to float.