Wednesday 10 March 2010

Float or Sink?


What happens if you drop a ball of playdough into a bucket of water?

Now flatten it out into the shape of a boat. What happens now? Why?


Science club used their knowledge of floating and sinking to make sailing boats.


Why not try it at home?


You will need:-

the lid from a coffee jar (or similar - check that it floats)

a straw

a little bit of blue tack

triangular paper sail


First hole punch your sail.

Then decorate it (if you want to).

Next feed the straw through the holes in the sail.

After that stick the blue tack in the middle of the lid.

Now stick the sail into the blue tack.

Finally set sail in your bath or sink.

HAVE FUN!

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