Publisher's Synopsis
Presents a selection of games to be played or made with balls and tracks. Illustrates some scientific principles such as gravity, momentum, and kinetic energy.
Paperback (01 Jan 1985)
Not available for sale
Includes delivery to the United States
Out of stock
Presents a selection of games to be played or made with balls and tracks. Illustrates some scientific principles such as gravity, momentum, and kinetic energy.