Why Lesson Planet?
Fifth graders are divided into groups of five. They are given sand and pebbles on the rasied side of the pan to form a beach. Students pour water into the bottom of the pan. They are given a sponge to put at the end of the pan in the water. Students push down on the sponge repeatly to make small waves. They observe and record the effect that the waves have on the sand and pebbles.