Polk Central third graders received a physics lesson on Monday as FENCE’s Michael McClure visited to present Force and Motion, an educational program offered through Project FENCE.

In the Force and Motion program, students discover that force and motion are the two most important concepts in science. They experiment with the ideas of inertia, momentum, friction and gravity.

Students in Lynn Carlson’s class created parachutes, then tested how air resistance slowed the pull of gravity.