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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
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).