Soil Layers
These forces can cause weathering of rocks.
What is water, wind and ice?
What is erosion?
All rocks are made of these.
What are minerals?
This is what makes the topsoil dark.
What is humus/decomposing plants and animals?
Soil is formed after this process takes place for a long period of time.
What is weathering?
This describes the way a rock feels when you touch it.
What is texture?
This type of soil feels "silky" and powdery.
What is silt?
The top layer of soil.
What is topsoil?
Name one way that wind causes weathering.
What is...answers will vary.
What is the movement of broken pieces of weathered rock (sediments) from one place to another.
What will happen to a rock that has been in moving water for a long period of time?
It will become smaller and smooth.
The properties of soil are...
What is color, texture, particle size, ability to hold water?
These are the properties of soil.
What is color, texture, ,particle size and ability to hold water?
Explain why some rocks in the desert are skinny at the bottom and larger up top.
What is the wind blows sand against the lower parts of the rocks because it is too heavy to carry higher up?
This is how the Grand Canyon was formed.
What is the Colorado River caused erosion to happen and a channel was formed that became deep over millions of years?
This is how we describe how a rock reflects light.
What is luster?
This is how soil forms.
What is weathering of a rock?