gogokids.co.nz
ScienceWiz- Energy
Join the Race to Save the Planet! Discover what energy is, how we make it now and what choices await us in the future. Build a solar car and join the race to save the planet! Learn about global warming. Includes materials for 22 separate projects. Requires common household items and one 1.5 volt battery and one 9 volt
Ricahrd Liu