Get things moving with this elementary science unit on simple machines. Through a series of nine lessons including teacher demonstrations, hands-on activities, and science experiments, young scientists learn about forces, motion,...

Blow the minds of young scientists with this collection of inquiry-based investigations. Based on a series of eight videos, these "hands-on, minds-on" science lessons engage young learners in exploring a wide range of topics...

Planning an elementary science unit has never been simpler! These twelve lessons guide young scientists through an exploration of simple machines and their many uses in the real world before asking them to apply their learning...

Planning a unit on simple machines? Save some time and energy with this collection of lessons and activities that explores how these devices are used in the real world to make life a little easier. 

[Free Registration/Login may be required to access all resource tools.] What a pulley is and the three basic types, and the mechanical advantage of a pulley.

[Free Registration/Login may be required to access all resource tools.] Actual and ideal mechanical advantage, how to calculate them and the mechanical advantage of different types of machines.