Force and Motion are my favorite units. These experiments are engaging, and the students love them. They work well with my "Force and Motion" PowerPoint presentation, and Force and Motion/ Newton's Laws glossary. Also available are Newton's Laws of Motion Experiments and Newton's Laws of Motion PowerPoint. We teach all of these as one unit in our classroom. This is one of my very favorite units! This document includes two complete experiments. One focuses on motion caused by forces between magnets. The other focuses on how friction affects motion. I use these in fourth grade, but grades 3-5 are suggested. Please contact me if you still have questions. I am happy to help!