- Forces and Motion
Round things will roll, square-ish things will not roll. We use wheels to help move things that aren't round.
Things roll and slide more slowly on a sticky or bumpy surface. The surface has more friction.
Things roll faster down a steeper ramp.
In this activity, students see these concepts for themselves through playing with ramps and a variety of 'rollers' and surfaces. The activity is separated into three different parts that can be staggered throughout the day or week.