Students explore mass and volume. In this mass and volume lesson, students pretend to be on a hike and have lost their way. Students must cross a river get back on track. Students must use mass, volume, surface area, density, property...

Middle schoolers use maps to locate and label the major rivers of North and South America. Using the internet, they identify forests, grasslands, mountain ranges and other landforms on the continents as well. They compare and contrast...