HomeHHMI's BioInteractiveWhich Balloon Has Hydrogen?


Free Resources for Science Education

Video: Clips
Which Balloon Has Hydrogen?

Air is an invisible gas as are hydrogen and helium. How can you tell if a balloon contains hydrogen? Hydrogen has particular physical and chemical properties that can be tested. Dr. Cech enlists student volunteers to show how a chemical reaction can be used to identify a substance.

Download this item

Related Scientists


Additional Materials

Bulletin Article
Bulletin Article