What is the difference between dirt and soil Bill Nye?

Soil comes from DIRT which comes from broken down rock. The reason why we have volcanoes is because there are plates of rock called tectonic plates, and they are always moving.

What are the 3 ways rocks are broken down?

There are mechanical, chemical and organic weathering processes. Organic weathering happens when plants break up rocks with their growing roots or plant acids help dissolve rock. Once the rock has been weakened and broken up by weathering it is ready for erosion.

What causes regional metamorphism?

Regional metamorphism is caused by large geologic processes such as mountain-building. These rocks when exposed to the surface show the unbelievable pressure that cause the rocks to be bent and broken by the mountain building process. Regional metamorphism usually produces foliated rocks such as gneiss and schist.

Are rocks and soil formed in the same way?

Soil is partially made up of particles of rocks and minerals. Rocks and minerals are nonliving soil components. The particles of rocks and minerals found in soil have broken away from larger pieces of rocks and minerals. Other nonliving parts of soil are water and air spaces between mineral particles.

What is the theory of plate tectonics?

The theory of plate tectonics states that the Earth’s solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet.

What is the underlying force that drives plate tectonics Brainpop?

Heat and gravity are fundamental to the process The energy source for plate tectonics is Earth’s internal heat while the forces moving the plates are the “ridge push” and “slab pull” gravity forces. It was once thought that mantle convection could drive plate motions.

How rocks break down into soil?

Soil is formed through the process of rock weathering. Weathering is the breakdown of rocks into smaller particles when in contact with water (flowing through rocks), air or living organisms. This acidifies water in rocks leading to further chemical reaction with rock minerals.

Why do you think increasing vegetation slows the rate of erosion?

Vegetation can slow the impact of erosion. Plant roots adhere to soil and rock particles, preventing their transport during rainfall or wind events. Trees, shrubs, and other plants can even limit the impact of mass wasting events such as landslides and other natural hazards such as hurricanes.