Learner Express: Modules for Teaching and Learning
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On average, soil only extends about one meter below the surface. Compared to the size of the Earth, soil is just a thin veneer on the surface. View Video
Part 1 of a three-part investigation into the sediments revealed at the ocean shore in Cape Cod, Massachusetts. View Video
Part 2 of a three-part investigation: ice flowing in the form of mountain glaciers is an important source of erosion in colder climates. View Video
Part 3 of a three-part investigation: over several episodes ending about 18,000 years ago, continental glaciers formed over much of North America. View Video
Extreme drill holes for research have only reached 14km below the surface—less than 0.2% of the distance to the other side. View Video
The various planets are thought to have formed from the solar nebula, the cloud of gas and dust left over from the Sun's formation. View Video
By digging a pit in either Hawaii or Massachusetts, scientists learn about soil composition and how it is formed. View Video
A rock outcrop on Lake Champlain has two adjacent rock sections: one horizontal, one vertical. Keith Klepeis investigates a potential cause. View Video
Keith Klepeis looks for possible sources of heat and pressure that could have deformed the outcropping at Clay Point in this continuing investigation. View Video
Geologist Keith Klepeis explains how the extreme forces from a tectonic plate collision were enough to cause the folding and partial melting of the rocks on Lake Champlain. View Video
Mountains are shaped by forces from below (plate tectonics) and forces at the surface (erosion). View Video
