Learners explore the simple machine of a wedge. For this wedge lesson, students test wedges on different materials including wax, soap, clay and foam. They learn how a wedge was used to build the ancient pyramid and modern day skyscrapers.

Students explore the building of a pyramid and how pulleys were used to change the direction of applied force. They demonstrate the mechanical advantage of using a pulley and apply it to modern engineering.

Students experiment with common objects such as spools, string and soap to determine how pulleys make it easier to move large objects. They look at the difference between fixed and movable pulleys. They examine the many uses engineers...

Students work together to examine inclined planes. They create a plan to raise rocks to build pyramids. They discover the changes that occur when the angle is increased or decreased.