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...

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...

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.

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.

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.

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...

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...

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...

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...

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...

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...

It's really not okay for buildings to start leaning. An informative video describes how geotechnical and seismic engineers consider the underlying bedrock and soil type when designing foundations for buildings. It looks at the Leaning...

We need a source of food to live on another planet. An installment of the extensive SciShow Space series suggests one option, farming on asteroids! Caitlin Hofmeister explains the challenges and benefits of potential future farms. She...

Young scientists explore climate change by taking a look at many different disciplines. They hear from scientists who study soil, clouds, ice cores, ocean temperatures, and more. Then, they search public databases to draw their own...

Termites in your house? Bad. Termites in your garden ... good? Discover the good side of an insect that often gets a bad rap with an interesting animation. The narrator discusses how termites break down plant material, what the soil...

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...

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...

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...

From stately oaks to towering pines, trees are the largest members of the plant kingdom that most people see. But how do trees get so big? Find out where the mass of a tree comes from with a short video. The narrator presents the topic...

Do you want to grow your own plant? No worries, find out how to plant, feed, and tend to your flower in a video all about plant growth. You can even observe, measure, and draw your plant in a daily science notebook.

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,...

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...

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...