imple machines help us change the amount of force or the direction of the force needed to move an object. Find out how by learning more about levers. Major Funding by the Laura Moore Cunningham ...

After learning about the lever, wheel and axle, pulley, inclined plane, wedge and screw, the students designed a future Hilltop playground, one that included examples of each simple machine studied.

Expertly blending comedy with a substantive look at physics and mechanics, Macaulay stages a lesson about simple machines at a zoo, where a sloth and shrew are attempting to escape. Short paragraphs ...