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Product #: EMC5014026_TQWhy Do Some Building Entrances Have Ramps? (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 how 'work' is defined, what force and distance are, and that ramps are an example of a simple machine called an inclined plane. Week 1 of 5 on 'Big Idea 6: People invented machines to make work easier.' Includes answer key.
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