Jan's Big Bang

Jan and her friend Sarah volunteer to be the only third graders to have a project in the school science fair, only to discover it is far more difficult than they expected to come up with an experiment that isn't dangerous and doesn't upset their families. Jan and her friend Sarah volunteer to do a project for the school science fair, only to discover it is far more difficult than they expected to come up with an experiment that isn't dangerous and doesn't upset their families