Monday, October 21, 2013

The Pencil Trick

Today in science we did something incredible.  We balanced a pencil on its point!

We have been studying balance for the past two weeks and have learned a lot.  For each experiment, we first chose a balance point and then attempted to balance the object. Today's object was an ordinary pencil, and we chose the pencil point as the balance point.  We tried to balance it alone over and over, but it just wouldn't work.  We then received some counterweights (in the form of clothes pins) and a piece of wire to help us attach the counterweights to the pencil.  It took us a lot of tries, but eventually we got the pencils to balance!  We used what we had learned (that the counterweights should be below the balance point) to help us find a stable position.  Check it out!