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 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...
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.
Learning Games Lab
Cation Exchange
Understanding soil composition requires an understanding of chemical bonding. An informative video lesson shows learners how the atoms and molecules in the soil form ions that attract and repel other atoms and molecules. The narrator...
SciShow Kids
What's the Dirt on ... Dirt?
Dirt or soil? What's the difference? Actually, dirt is soil as explained by the video's high-energy speaker who goes on to emphasize its importance. She describes the composition of soil as minerals, water, air, and organic matter that...
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...
MinuteEarth
Why Poor Places Are More Diverse
Poor soil actually grows the most diverse plants. Although this sounds like a contradictory statement, the video lesson explains how and why this is true. Learners discover how rich soils typically cater to the stronger, faster-growing...
Learning Games Lab
Unavailability of Water in Saline Soils
Viewers of a short video learn about salt and water molecules and how their characteristics determine how they interact with each other. Then, they watch a simulation of how the interaction limits the uptake of water in plant roots and...
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...
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