This intro song to The Big Bang Theory covers topics such as the origins of the universe, universal expansion, and the Big Bang. It is important to note that there are inaccuracies in this intro song, so it makes for good review, discussion, and/or an assignment (confirm or refute one of the claims).
Stephen Hawking tasks a team of volunteers with replicating the Big Bang on in a hockey rink. The volunteers decide to stand next to each other and inflate balloons to simulate an "explosion." They enlist the help of a professional hockey team since they have trouble staying on the ice and need more people to create a better representation of the Big Bang.
This clip provides information about the Big Bang and how life started. It also states how powerful the Big Bang really was and how it suggests the universe is still expanding because of the kinetic energy from the event.
This clip explores the leading theory about the origins of the universe, the Big Bang theory. It shares evidence for this theory, notes that the universe is exponentially growing larger, and describes the Big Bang theory in detail.