In this lab students will first run investigations to determine which is stronger, an attraction or a repulsion force. They should be able to conclude that repulsion force is stronger. The two remaining investigations will have them comparing distance and time in movement from using one magnet, to using double magnets. As long as your students have a toy car that fits on a track and magnets, you should be able to use this lab, even if you don’t use OpenSciEd lessons. Depending upon how strong yo