Curated OER
Effects of Weathering
Here's a great geology lesson for 3rd graders on weathering and erosion of soil. After a class discussion on how nature can "move a mountain," learners take a look at how a modern phenoma called acid rain can also cause weathering and...
Curated OER
Sediment Sleuths
Are you looking for a good, solid activity on sedimentary rocks? This one, produced by the Illinois State Museum, is just such a activity. Middle schoolers identify common rocks and minerals by analyzing sediments from local water...
Curated OER
Physical Changes and the Water Cycle - Three
Third graders observe and reproduce the water cycle in their very own classroom. A simple, yet very effective, demonstration on how water evaporates is observed by the young scientists. They make observations and sketches in their...
Curated OER
Earth's Water
If the majority of our planet is covered with water, why do we need to bother conserving it? With a thorough and varied investigation into the location and types of water on the earth, learners will gain an understanding of why this...