Motion and Forces

The Odd Machine - [ Kids/Teens ] - Game helps explore the laws of physics by building animated machines.

Physics Learning Site - [ Teens/Mature Teens ] - Focuses on teaching introductory kinematics concepts.

Physics of Asteroids, Comets, and Meteoroids - [ Teens/Mature Teens ] - Includes discussions of gravity, orbits, energy, and Kepler's and Newton's laws. Includes activities and links.

Science Snacks About Mechanics - [ Kids/Teens ] - A set of very simple experiments involving several kinds of bodies featured by Exploratorium, each one with details on materials, assembly, how can be done, and also an explanation of the related physical laws.