Soil
What is the top layer of the Earth's surface called?
What is soil.
When rocks break down because of physical forces.
What is physical weathering.
How many layers make up soil?
What is 4.
Various solids, liquids and gases that make up the Earth.
What is Earth materials.
When rock pieces break off and tumble down hill it is called a __________.
What is landslide and/or rockslide.
This location tends to have soil that is heavy in sand and clay.
What different kinds of materials do you find in soil?
What is pebbles, gravel, sand, silt, clay, and humus.
The rubbing, grinding, and bumping of rocks.
What is abrasion.
This location tends to have soil that is heavy in pebbles and gravel.
What is mountain soil.
Dead material that becomes part of soil.
What is Humus.
When water freezing due to cooling temperatures, it _______.
What is expands.
This location tends to have soil that is heavy in humus.
What is forest soil.
This is found in spaces between soil particles.
What is air.
What is one real life example of physical weathering.
Answers may vary -- up to teacher.
This location tends to have soil heavy in sand, silt and clay.
What is valley soil.