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	The Pulley - Simple Machines (The Organic Chemistry Tutor) View
	Simple Machines: The Pulley (funsciencedemos) View
	Pulleys - simple machines (Peace) View
	How Levers, Pulleys and Gears Work (The Efficient Engineer) View
	What Are Simple Machines \| Types Of Simple Machines \| The Dr Binocs Show \| Peekaboo Kidz (Peekaboo Kidz) View
	Pulley: Simple Machines \| Types of Pulley \| Science \| TutWay (TutWay) View
	Simple Machines - Pulleys - Block and Tackle (CroomPhysics) View
	Science Fair Projects \| Simple Machine Pulley (DIY Projects) View
	Simple Machines: Wheels and Pulleys - General Science for Kids! (Miacademy Learning Channel) View
	Simple Machines \| Animation (EarthPen) View