This science book comes with materials included for 24 activities. Through rocketry and a classic set of favorite projects, Motion explores the central concepts of physics. This kit is packed with parts, including a beautiful, precision, brass colored balance scale to measure mass, a hover puck, a jet car that really zooms, the components to make your own spring meter, an accurate to 1/100 of a second stop watch to clock speed, velocity and acceleration and the tubes, stoppers and inflation needle to launch both water rockets and baking soda rockets. Each project has been refined, through years of testing and feedback, into age appropriate fun.