soil by, mrs. schuette’s second grade class 2013
TRANSCRIPT
SoilBy,
Mrs. Schuette’s Second Grade Class
2013
TopsoilThe top layer of soil.
Subsoil
The layer of soil below the topsoil.
A mixture of decaying plants and animals in soil.
GravelA part of soil made up of large sized
pieces (smaller than rock).
Sand
A part of soil made up of medium sized grains (smaller than gravel).
SiltA part of soil made up of small sized
grains (smaller than sand).
Clay
A part of soil made up of very small grains.
LoamA mixture of clay, silt, and sand.
Compost
A mixture of decayed leaves, vegetables, and
other plant materials.
OrganismA living thing.
Decomposers
Tiny organisms in the soil that help break it down.
DecayThe process by which
dead material breaks down (rot).
Nutrients
Materials that plants and animals need to live and grow.
OrganicAnything that does come
from living things.
InorganicAnything that does not come
from living things.
ErosionThe wearing away of rock or soil.
WeatheringThe breaking down of rocks.
The End!