A board game - updated! This game board is hung vertically on the wall. With just a few basic pieces, a child can experiment with a few of the basic elements of science and physics, such as inclined planes, levers and pulleys, and experiment with weight distribution. The weights have cutouts to represent their weight (1/4, 1/2, 3/4 and a whole). These weights can be set down, rolled, or hung, and they are magnetic!