October 12, 2011
Design and build a machine to squeeze water out of a towel.
Works with wheels and axles.
With gears paper can be crinkled.
With both water can be squeezed out of a towel.
This distance is right for a straw if it is left in the paper wrapping.
It makes a great top spinner.
The other Yellow set Wheel and axle challenge also can be made with
the new White sets.
A few of the students started on the Haunted House.
