Tin foil boats


Mr. Scott’s Boat Video


A great science experiment in buoyancy.  Design and build a boat out of tin foil and see if it floats.  Add pennies to see which boat design holds the most before sinking!

Watch Scott’s VIDEO to see what type of boats he made


  • Tin foil
  • container of water
  • coins
  • Paper and pencil


  • Draw out a few designs for your boat.
  • Shape the foil into your design.
  • See if it floats
  • Place coins inside the boat one at a time and see how many it can hold before it sinks.
  • Record your results to find out which boat design works best.

Add challenges:

What other material could you build a boat out of?  Clay, wood, plastic, cardboard?