The following books and websites contain additional information, activities, and enrichment options.


Experiments with Motion
Salvatore Tocci, Children's Press, 2003
Forces Around Us
Sally Hewitt, Children's Press, 1998
Levers: Machines in Action
Angela Royston, Heinemann, 2001


Amusement Park Physics: Roller Coaster

For additional websites, see the Best of the Net feature at and sites recommended by the National Science Teachers Association at