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Of course you can, because Styrofoam can float on top of water for a long time. A lot of newer boats have Styrofoam in the bottom for added buoyancy if you do add it to your boat, be sure that there is no moisture in the bottom of boat when you do it if not completely dry , moisture will be trapped and eventually rot any wood that was used in the boat's construction.
you make the Styrofoam look like it
Styrofoam is lightweight and contains a lot of air pockets, which provide buoyancy when placed under water. This buoyancy helps to keep the boat afloat even when it's carrying a heavy load.
Dow Chemical company is the leading producer of Styrofoam. Styrofoam is used to make many things such as plates and cups.
the thinner one because it can cut through water faster
using chemicals
Styrofoam has pockets of air. These pockets make it harder for heat to travel through.
A model house/building your own world (Styrofoam ball) and anything you can imagine.
No, wrapping it up in something heavy will not make the Styrofoam itself weigh more.
Containers or Boxes.
Acetone will not make Styrofoam hard. Putting Styrofoam in acetone will dissolve how to do it is easy. Place a bit of acetone into a bowl then put in the Styrofoam in the bowl and it will dissolve away.
To make styrofoam smooth and paintable, you can sand the surface with fine-grit sandpaper to remove any rough edges or imperfections. Then, apply a coat of primer specifically designed for styrofoam to create a smooth base for painting. Once the primer is dry, you can paint the styrofoam with acrylic or spray paint for a finished look.