How to make a potato to flow?
The potato
goes down, when we put it in a bowl of water. What can we do in order to make
it flow?
We have
some toothpicks and two pieces of polystyrene.
We use these specific objects, because, through some experiments during
science lessons, we have learned that toothpicks and polystyrene flow in the
water.
We put two
toothpicks on the potato that help us to set the pieces of polystyrene.
Now, the
potato does not go down! It flows!
The pieces
of polystyrene are like water wings that we put on children when they can not
swim!
We enlarged
the size of potato and now it flows!!
How to make a cork to descend in the water:
The cork
floats when we put it in a bowl of water. What can we do in order to make it
descend?
We will use
some pins, since we have discovered through experiments during the science
lessons, that the pins go down in the water.
We place
the pins on the one side of the cork. We
observe that only a part of the cork goes down. In order to make it descend
more, we add some plasticine.
Now the
cork descends!!
The divers
put some weights on their belt in order make their bodies heavier and achieve
to go down in the sea water. Having that in our minds, we tried to make this
cork heavier and we placed pins and plasticine on it!
