Show the six-minute video, "Changing Planet: Fading Corals," and then demonstrate how calcium carbonate forms a precipitate in the presence of carbon dioxide. Separate your scientists into small groups to gather information about coral...

Students research and report on the life and times of Henry David Thoreau. In this Thoreau research lesson, students visit the given website and freewrite about Thoreau's life and home. Students work in groups to research and report on...