This video explains the concept of soil horizons and the different layers that make up a soil profile. It highlights the three main horizons - A, B, and C - and their characteristics, such as nutrient content, humus presence, and mineral...

Soil brings together all four spheres of physical geography, and understanding soil composition is kind of like baking! So in today's episode, we're going to show you how to create the perfect soil cake, examine its different soil...

In this video students will learn about the two major types of weathering, and the forces that alter the shape and composition of rocks. Students will explore the different types of soils, soil properties and the soil profile. Other...

In this video students will learn about the two major types of weathering, and the forces that alter the shape and composition of rocks. Students will explore the different types of soils, soil properties and the soil profile. Other...

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...

In this video students will learn about the two major types of weathering, and the forces that alter the shape and composition of rocks. Students will explore the different types of soils, soil properties and the soil profile. Other...

It explains the formation of soil. It talks about what soil is made up of and the soil profile.

In this video students will learn about the two major types of weathering, and the forces that alter the shape and composition of rocks. Students will explore the different types of soils, soil properties and the soil profile. Other...

In this video students will learn about the two major types of weathering, and the forces that alter the shape and composition of rocks. Students will explore the different types of soils, soil properties and the soil profile. Other...

In this video students will learn about the two major types of weathering, and the forces that alter the shape and composition of rocks. Students will explore the different types of soils, soil properties and the soil profile. Other...

In this video students will learn about the two major types of weathering, and the forces that alter the shape and composition of rocks. Students will explore the different types of soils, soil properties and the soil profile. Other...

In this video students will learn about the two major types of weathering, and the forces that alter the shape and composition of rocks. Students will explore the different types of soils, soil properties and the soil profile. Other...

This video profiles Synthia Tonn, a junior engineer on the Sample Analysis at Mars (SAM) instrument team responsible for SAM's ground support equipment as well as its 'plumbing,' or the series of tiny, winding gas lines that connect...

MOT 1940: INDEX CARD: 'FARM' WS Farmland w/ hills & houses horses grazing FG. Farmer brushing coat of mule. Young man & older woman talking in store shelved jars BG. Women w/ apron cleaning jars on table canning. Farmer w/ two...

From treetops to rivers to the bedrock below, there is constant activity going on in what we can think of as the “skin” of our planet. It’s called the critical zone, the active layer of the Earth where life-forms, from microbes to...

Permaculture instructor Andrew Millison explains the landscape profile zones of the Keyline® farm design system.

The four zones within the landscape profile
are:
1) Water Catc
hment Zone
2) Water
Retention Zone/>3)...

Following the attack on Pearl Harbor in 1941, thousands of Japanese-Americans were interned on U.S. soil. Determined to right this wrong, Yuri Kochiyama testified to Congress and helped those affected win $20,000 in compensation.

Sample Analysis at Mars (SAM) is a suite of instruments developed for use on the Mars Science Laboratory. By looking for evidence of water, carbon, and other important building blocks of life in the Mars soil and atmosphere, this...

Sample Analysis at Mars (SAM) is a suite of instruments developed for use on the Mars Science Laboratory. By looking for evidence of water, carbon, and other important building blocks of life in the Mars soil and atmosphere, this...

Meet Jo Handelsman, Director of the Wisconsin Institute for Discovery and Associate Director for Science, White House Office of Science and Technology Policy, where she launched the National Microbiome Initiative. Her research at Yale at...

The Saturn V rocket took American astronauts to the Moon in the 1960s, and it remains the largest, most powerful rocket ever launched from American soil. But an earlier lunar mission profile demanded an even larger rocket called Nova...

Researchers look under the road to aid self-driving cars

Even the most high-tech vehicles don’t navigate well in rain and

snow

Car companies and researchers have been feverishly working to improve the...