By using levers, planes, and pulleys, students explore how simple machines help make work easier.
(students; explore; how simple machines help make work easier) Context(students explore,List([38, 54))):(how simple machines; help; make work easier) Context(students explore how simple machines help,List([38, 79))):(how simple machines; help make; work easier)
students explore,List([38, 54)) students explore how simple machines help,List([38, 79))
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