30 items
The hardest part of a science fair is the week spent picking a topic, by which point there is no time left to do it properly. Draw a project and start gathering materials the same evening. Thirty investigations using things most homes already have, each with a real variable to test rather than a demonstration to perform. Teachers handing these out by draw get thirty different projects instead of nine volcanoes, which improves the evening for everybody.
All 30 entries that will load into your picker
More from Education, and a couple from elsewhere