Definitions
Definitions
Short Answer
100
things that are or were alive
What is organic
100
to rot or break down
What is decay?
100
rock, dead, things, microbes, larger organisms
What is the four components of soil?
200
things that were never alive
What is inorganic?
200
earth worm waste that puts nutrients back into soil
What is castings?
200
One is or was alive, one was never alive
What is the difference between organic and inorganic materials?
300
to cause air to circulate through
What is aerate?
300
when exposed rock breaks down or decays
What is weathering?
300
They decay dead things by eating them which returns nutrients to the soil
What is how do microbes help to make soil rich?
400
very tiny living organisms such as a bacteria
What is microbes?
400
weathering that involves water and air dissolving rocks
What is chemical weathering?
400
sand, silt, clay, dissolved minerals
What is what do we get when rocks weather?
500
a type of weathering where rocks break down into bits of dust by cracking, splitting, and chipping caused by heat and extreme cold
What is mechanical weathering?
500
weathering cause by plants including trees and moss that split rocks
What is biological weathering?
500
recycle leaves by eating them, leave castings behind, aerate the soil
What is how do earthworms help soil?
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