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Product #: EMC5014028_TQHow Do Elevators Work? (Resource Book Only) eBookGrade 4Sale! Ships Free!
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This daily science unit for grade 4 presents information and five activities in which students learn that elevators work through the use of pulleys (a simple machine), what kinds of pulleys there are (fixed and movable), and what 'mechanical advantage' is. Week 3 of 5 on 'Big Idea 6: People invented machines to make work easier.' Includes answer key.
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