| Scientific American, Winning Science Fair Projects, Grades 5-7, Paperback - Bob Friedhoffer • elefant.ro | 53.99 RON |
| Scientific American, Winning Science Fair Projects, Grades 5-7 - Bob Friedhoffer • libris.ro | 55.52 RON |
EVERYTHING YOU NEED TO KNOW FOR WINNING SCIENCE FAIR PROJECTSLearn Experiments that help you to: Build Electric CircuitsCreate an Object that Has Only One SideBreak Light into its Component partsCreate Static ElectricityDiscover How Light WorksFind Out Why Earth Rotates and What Keeps Us on the GroundExamine How Waves WorkDiscover Your Green Thumb Featuring Experiments in: ElectricityElectromagnetismGravityPlant GrowthLight and OpticsSurfacesReaction TimeCentrifugal ForceSound Waves Grades 5- 7
