Complex sentence: The work of science clubs began to culminate in science fairs held locally as part of the science movement.Science fair was originally defined as the followings at the first national science fairs in Philadelphia in 1950.
Split into simpler sentences: The work of science clubs began to culminate in science fairs held locally as part of the science movement. A science fair was originally defined as the followings at the first national science fairs in Philadelphia in 1950.