Intro to Soil
The material that covers most of the Earth's land.
What is sand?
Largets particle size. It is rough and comes from different colored rocks. Has large air spaces so water flows through easily.
What is the O layer comprised of?
Organisms, organic layer
What is a natural resource?
Resources that are naturally available in the environment.
What is a nutrient?
Living things must take in to live and grow.
What is soil made of?
It is made of rocks, minerals, and remains of living things.
What is silt?
Is the second-largest particle size. Rivers carry silt from place to place. Smooth and holds water better than sand.
Which horizon has leaching?
E Horizon
Why is soil a natural resource?
Everything that lives on land depends directly or indirectly on soil.
What is the main material in soil?
Humus
What is a particle?
Very tiny pieces of rock and rock particles are the main material in soil.
What is clay?
Smallest particle size. Sticky and smooth. Redish brown, and has tiny spaces between particles.
What is found in the R horizon?
Bedrock
What are some examples of natural resources?
Air, water, wood, soil, and sunlight.
Which kind of soil has the largest particles?
Sand
What is humus?
Comes from the remains of dead plants and animals. Contains nutrients.
What is Loam?
Which soil horizon is known as the subsoil?
B Horizon
The ecosystem will also change.
A student wants to grow a plant in a pot. Which kind of soil will be best to use?
Loam