Expanding Universe

Purpose

To demonstrate the concept of the expansion of the universe.

Equipment

Weather balloon with spots, air track blower.

Suggestions

A large balloon is painted with red spots representing galaxies in the universe. Blow air into the balloon with an air blower to expand the universe.◙

Images

e2-63

Description

A large balloon is painted with red spots representing galaxies in the universe. Blow air into the balloon with an air blower to expand the universe.◙

References

David Chandler, An Expanding Universe in the Classroom, TPT 29(2), 103-106, (1991).