A simple machine helps people do work more easily., , Early humans used levers to move heavy rocks., , The wheel and axle made travel and trade easier., , An inclined plane allows people to move objects up a slope., , Sailors used pulleys to raise sails on their ships., , Wedges can split wood, but they can also cut other materials., , Ancient builders used simple machines to help construct large monuments and buildings., , In ancient Egypt, workers may have used ramps to move massive stone blocks for the pyramids., , “Push together!” shouted Coach K as the students demonstrated how a lever can lift a heavy object., , By combining simple machines with creativity and teamwork, early civilizations were able to accomplish remarkable engineering achievements., .

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