Curated OER
Light
Here is a stellar slide show for illuminating middle schoolers' minds on the topic of light! An interactive slide allows viewers to sort light sources by whether or not they are man-made. More objects are displayed and learners discover...
Science Geek
Earth's Atmosphere
Ozone gas absorbs the harmful UV-B rays and helps protect humans. An informative presentation begins with the layers of the earth's atmosphere, the pressure and temperature in each of the layers, the ozone layer, the ozone cycle,...