Show:
Vocabulary
Soil
Conservation
True or False
Bonus Questions
100
Sticky soil made of very small grains and has a gritty feel.
What is clay.
100
Farmers need this to grow crops.
What is soil.
100
A resource that provides oxygen for us.
What is a tree.
100
Humus is light brown.
What is false, humus is black.
100
Loose material in which plants grow in the upper layer of the Earth.
What is soil.
200
The part of the soil that has been made of decayed parts of once living things.
What is humus.
200
This makes up most of soil.
What is minerals.
200
Water or rain does this to soil.
What is erosion.
200
Fertilizers add nutrients to soil.
What is true! This is why farmers use them.
200
Any material found in nature and used by living things.
What is a resource.
300
The rich type of soil that has lots of humus, it can be found at most farms.
What is loam.
300
The first layer of soil is called this.
What is topsoil.
300
Growing crops on hill is called this.
What is contour cropping.
300
Farmers use contour cropping to stop erosion (the washing away of soil).
What is true!
300
Saving resources by using them very carefully.
What is conservation.
400
Planting strips of thick grass or clover between strips of crops.
What is strip cropping.
400
This is underneath topsoil.
What is subsoil.
400
Water, air, trees and minerals are called this.
What are resources.
400
It is good for the soil to grow the same crops every year.
What is false! This takes valuable nutrients from the soil.
400
Farmers use this to make soil better for growing plants.
What is fertilizer.
500
Planting rows of crops around the sides of hills to avoid erosion.
What is contour cropping
500
This is underneath subsoil and has rock in it.
What is bedrock.
500
This is the best soil for farming and has a lot of humus and minerals in it.
What is loam
500
All soil is the same.
What is false. Soil can have different grain size, minerals, color and hold different amounts of water!
500
These are the four elements in soil.
What is minerals, air water and weathered rock.