Components
Layers
Vocabulary
Conservation
Soil Soil Soil
100
The decayed organic material in soil is called
What is humus
100
The layer is rich in organic material and humus
What is topsoil.
100
A scientist who studies soil is called?
What is a pedologist
100
What does soil conservation mean?
What is the protection and wise use of soil
100
What do scientists call this statement, "If there is a lot of sand in the sample of soil, then not a lot of water would be held." (Hint: It is a prediction made before an experiment)
What is a hypothesis?
200
The 5 components of soil
What are humus, sand, silt, clay, and gravel
200
The order of the layers of soil from the top down is.
What is topsoil, subsoil, bedrock
200
What is soil?
What is a material made of tiny pieces of rocks, minerals and decayed plants and animals.
200
What are some ways to conserve our soil? List 2.
What is contour farming, putting up fences, terracing, composting, wind breaking, mulching, planting trees and grasses.
200
When the root of a seed begins to grow.
What is germinate?
300
True or false: Different components of soil hold different amounts of water?
What is true
300
The layer made up of rock.
What is bedrock
300
The breaking down of rock over time into soil.
What is weathering?
300
True or false: You can help stop erosion by planting trees or grasses.
What is true
300
This part of the plant anchors and absorbs water and minerals from the soil.
What are the roots?
400
True or false: A sandy soil will hold a lot of water?
What is false
400
This layer is mainly made up of sand and clay with little organic material
What is subsoil
400
True or false: Plant roots can grow down into the subsoil but not to the bedrock.
What is true.
400
Why do plants and animals need soil?
What is soil provides plants with nutrients they need, these plants provide homes, food and oxygen for animals and humans.
400
True or False: Water and wind can break down rocks that then become soil.
What is true?
500
Which component is better for plants to grow silt or gravel?
What is silt.
500
Many living things are found in this layer of soil, such as earthworms, millipedes, etc.
What is topsoil
500
Materials in the soil that living things (plants) need to grow and develop.
What are nutrients?
500
The movement of soil being washed away by water or swept away by wind is called?
What is erosion.
500
What is layer B called?
What is subsoil?