Shadow Chalk Experiment

I love teaching my kids through play or in other words through active learning. They have fun through discovery while not realizing they are learning something new. This past weekend I taught my kids about the movement of the sun while playing with chalk on a sunny day. For this shadow chalk experiment we traced some shadows and later came back to those objects, still in the same place. The first observation my kids made was that the shadow moved. What happened and why does that happen they ...