Use the water cycle to turn saltwater into freshwater! Great for units on water cycle or water treatment. Can be completed within a 50 min class period, with a follow up of 20-30 minutes a few days later.
LP and Student materials to accompany US Dept of Energy and Discover Engineering lesson plans for a solar oven made with a pizza box! Links for free US Dept of Energy and Discover Engineering included. Can be finished in 2-3 class periods.