AP Environmental Science
Have students calculate their ecological footprints so that they can see the impact their lifestyle decisions has on the planet. A one day activity that will have your students thinking critically about this issue. A great no-prep day for you or a great sub plan.
This is a science experiment that displays what water does to the shoreline of the ocean. In class, explain how the beach is made. It is made by the erosion of rock formations that are moved on shore by the waves. You can put sand in a cup and make a "land formation" and show what the waves do to it as they splash up to the beach.