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...
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.
New Mexico State University
Properties of Soil: Particle Size
Soil is 25 percent air on average. Learners may have a difficult time accepting that fact without a visual to demonstrate the property. A quick video lesson uses a model to show how this percentage is true and also discusses the...
New Mexico State University
Soil Sampling: Random Sampling a Small Field with Hammer Probe
There's some serious science behind farming! A quick video lesson presents the process of collecting a random field soil sample for analysis. Instruction includes what a random sample looks like as well as how to prepare the sample for...
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: Random Sampling Across a Large Field with Hammer Probe
What defines a random sample? Scholars learn how to collect a random soil sample from a large field. The narrator explains the importance of ensuring the sample is random and shows how to create a random sample before sending it to the lab.
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...