van de graff powerpoint

Really inventive ideas here cocnerning "lightning" as produced by a Van der Graaf generator. Students devise experiments to investigate a number of posed questions. I couldn't get the (embedded?) videos to work on my set up. Some minor typos exist. There are class questions ( with answers ) at the end of the sequence and further problems to consider. Grade targets and learning objectives are mentioned at the start. Very good resource, indeed.