Review
for SOL Test Online
Park Avenue Elementary School
661 Park Avenue Danville VA 24541 |
3.7 The student
will investigate and understand the major components of soil,
its origin, and importance to plants and animals including humans. Key
concepts include
* soil
provides the support and nutrients necessary for plant growth;
* topsoil
is a natural product of subsoil and bedrock;
* rock,
clay, silt, sand, and humus are components of soils;
* soil
is a natural resource and should be conserved.
Take
a Science Test: Soil
| What is Soil? |
How Does Rock Become Soil? |
(Mostly Rock)
Rock, clay, silt, sand, and humus
are components of soils |
Rock is broken down into tiny pieces
by rain, wind, frost,
etc. and by rivers and streams. |
| What is Humus in Soil? |
What Else Does Soil Contain? |
Humus is the remains of decayed
animals and plants that have become part of
the soil which adds nutrients needed for plant life. |
Air
Conduct
an Experiment
|
| Are there different types of Soil? |
Which Soil Grows the Best Plants? |
Clay Soil
Sandy Soil
Loam
Conduct
an Experiment |
Clay Soil
Sandy Soil
Loam
Conduct
an Experiment |
|
