Second graders explored states of matter using bubbles during their STEM time for a couple of weeks. First they were presented with a variety of bubble wands. They had to predict if the bubble wands given to them would make large bubbles or a large number of bubbles. Then they went outside to test them and record their results.
In the next session, students planned and designed a bubble wand using pipe cleaners that would either create large bubbles or a large number of bubbles. When we went to test them they were amazed that they actually worked!