Sheldon and Leonard use the stairs as an inclined plane to decrease the force required to lift the package. This is a very clear illustration of what an inclined plane is and how it is used in our daily lives.

Teacher Susie challenges her students to move the basket from the ground to the top of the slide. The students experiment with different approaches until they come to a solution. Then, they record their observations in their journals.

Jackie, Matt, and Inez brainstorm how to build a ramp to get up the steep cliff to the island. They create a design for the ramp such that it can be easily transported and will serve the purpose of getting them to the island.

Sophie illustrates the six basic simple machines that exist and explains how they are useful in our everyday lives. She defines force and work and mentions that simple machines reduce the amount of work required for a task.

Dewey is sick at home and creates a dominoes masterpiece. The dominoes illustrate the conversion of potential energy to kinetic energy.