Curated OER
Labs from Chicago, Summer 1993: Calibrating the Sun's Light
Students experiment with the luminosity of the Sun's light. In this luminosity lesson, students participate in an experiment with luminosity of the sun and flashlights. They make filters and fiber optic sources.
Howard Hughes Medical Institute
Hhmi: Biointeractive: Earth Viewer
Watch the earth change with this interactive app? What did Earth look like 250 million years ago? Or 1 billion years ago? Or 4.5 billion years ago? What was the climate like in the deep past? Find the answers with EarthViewer, an...