The document contains questions about several science demonstrations involving gases and vacuums. It asks what will happen to a candle in a vacuum, why two volunteers could not separate vacuum sealed spheres but one person could, the main ingredients of marshmallows and what happens to a marshmallow man in a vacuum, what removing air from a jar will do to balloons inside and how to make them do the opposite, and what will happen to water placed in a vacuum pump and what temperature it will reach after boiling.