Curated OER
Topographic Maps
Sometimes it is difficult to grasp topographic maps. Here is a clever presentation designed to help your middle school earth scientists understand. Beginning with a side view of a pair of mountains, a graphic guy walks up one slope. As...
Curated OER
Topographic Map Unit Plan
Students examine topographic maps and discover how to decipher contour intervals, use contour lines and apply information to complete a topographic map lab. Working in groups, they identify the scale of the map, latitude and longitude,...
Curated OER
Effects of Ozone Depletion
Explore the causes of ozone depletion and the effect on plankton, algae, plants, amphibians, and humans. Learn how the Montreal Protocol has possibly helped reverse the decline of the ozone layer. Warning: photos of skin and eye damage...
Curated OER
Geometry of Exploration: Eyes Over Mars
Students research how engineers and scientists generate linear and angular measurements with geometry to survey the Earth and Mars. They assess how geometric shapes affect navigation. A surveyor comes to the classroom and explains how he...