transmission_and_transformation_of_motion.pptx
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simple_machines.pptx
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energy_vs_matter.pptx
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energy_vs_matter_student_version.pptx
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energy_energy_energy.pptx
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notes_energy_fill-in_2016.docx
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building_instructions_for_pinwheels.pptx
File Size:	137 kb
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pollution.ppt
File Size:	477 kb
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