Curated Video
Soil Testing to Manage Nitrates on Delaware farms
USDA's Natural Resources Conservation Service in Delaware and its partners are helping farmers take care of their soil and the environment. Jacob Urian of the Kent Conservation District demonstrates how to conduct a Pre-Side Dressing...
Curated Video
Advancements in Laser-Induced Breakdown Spectroscopy: Remote Analysis and Applications
Scientists at Los Alamos National Laboratory have developed a groundbreaking method of materials analysis using laser-induced breakdown spectroscopy (LIBS). By firing laser pulses at a material and analyzing the emitted light, the system...
Learning Games Lab
Soil Infiltration: Soil Porosity Testing
Soil pollution has a longer reach than may seem possible. A video presentation demonstrates how a seemingly isolated soil contamination spreads and even reaches waterways. The lesson demonstrates how scientists conduct porosity tests...
New Mexico State University
Soil Sampling: Soil Variability
Not all soil is created equal. Learners examine what to look for in a soil sample to identify key characteristics that don't require lab testing. They see that it's easy to verify observations by comparing the samples to a soil map.
Learning Games Lab
Properties of Soil
How do the different types of soil allow water to flow? Scholars compare flocculated and dispersed soils and their ability to move water through the soil. Silt, sand, and clay particles clump together and create large pores in the soil...
Learning Games Lab
The Olsen Test for Phosphorus
A short video teaches viewers about the Olsen Test, a soil test specific for plants grown in arid regions. The soil in arid regions has a higher pH and plants require special treatment to thrive. The video provides information about the...
Fuse School
Acid Rain
Rain, rain, go away ... at least if your pH is below six! The sixth installment in a series of seven videos teaching about pollution and our atmosphere shows learners the facts about acid rain. Embedded pauses allow you to stop and check...