Some scientists spend their entire careers analyzing and learning about soils. An interesting video lesson provides an overview of what soil scientists do and why. Pupils learn how soil analysis connects to other branches of science...

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.

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...

You won't find any holes here. An earth scientist demonstrates the process of collecting a soil sample in a quick video presentation. She uses two different tools and discusses the benefits of each.

Add a little salt to your soil and see what happens. A video demonstration shows how soil with high and low sodium content interacts with water. A quick experiment demonstrates the properties of dispersion and the role sodium has in the...

Rock the classroom with this hip video clip about dirt and rocks! Contents and the process of producing soil and sand are explained in the forest and on the beach. Time, pressure, and high temperatures are introduced as the...

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...

Taking a sample of soil requires more than just a shovel and bucket. Viewers learn about the important factors to consider when taking a soil sample in an informative video presentation. The narrator demonstrates the process in an actual...

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...

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...

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.

Soil infiltration has less to do with the soil than what is covering the soil. A quick video presentation demonstrates how different soil samples use water. The instructor takes note of both the infiltration demonstrated by each sample...

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,...

Careers in science aren't limited to labs. Pupils learn about different aspects of careers in agriculture through the lens of several scientists. The scientists talk about how the field of soil science is a growing in this important...

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...

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...

A sponge and soil have a lot in common. Using a sponge to model a soil sample, a video presentation demonstrates soil terminology. The instructor shows how water moves through soil to model infiltration and percolation.

What do water and wind do to open fields? An interesting video lesson demonstrates how ground cover protects the loss of soil from rain and wind. It shows four soil samples with varying degrees of ground cover and how people collect the...

Where did all the good topsoil go? Viewers use a visual presentation to learn how surface cover protects soil from water runoff. The video presenter shows the result of a rain shower by comparing freshly planted soil and another sample...

Soil naturally erodes and produces new soil at the same rate when left to nature, yet farming erodes the soil 50 times faster than it forms. The video discusses soil, the ways humans damage it through their actions, and encourages many...

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...

Your science class may not enjoy ecology yet, but after this video series they are sure to be lichen it! An educational video explains ecological succession at the community level. It includes primary succession starting with...

Fungi are more than fun ... they're also functional! Most everyone knows they serve as Earth's decomposers, but ancient fungi took their job to a whole new level! An entertaining video from a large biology playlist examines the giant...

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...