Search Results for: Poppy straw not cut
radiation. grade level - disciplinary core ideas (dci, ngss) -ps - , ms-ps - , ms-ps - , hs-ps - , hs-ps - , hs-ps - time for teacher preparation - minutes – to gather materials and set-up activity time: - minutes ( class period) materials pen, marker, or pencil balloon foam plate foam cup drinking straw
invented in by john canton. the ball was originally made out of a spongy plant material called pith. any lightweight nonconductive material, such as aluminum foil, can work as a pith ball. the pith ball is charged by touching it to a charged object. since the ball is nonconductive and the electrons are not...
http://nuclearconnect.org/in-the-classroom/for-teachers/making-atoms-visible-electroscope