5. Layers of soil
Topsoil
Has lots of Humus. Many small
animals live in it.
Subsoil
Does not have lots of Humus,
but it has small pieces of rock
Bedrock
It has no Humus. Made up of
solid rock.
6. Types of soil
- Soil can have different
colors.
- Soil can have different
sizes of rocks (grains)
7.
8. Types of soil
Sand soil Silt soil Clay soil
Properties
Size of
particles
Feel
Gritty (coarse) Smooth Sticky
(When wet)
Not much air
Air space Lots of air space Some air space
space
Passes fast Does not pass
Water (Dry fast)
Stays a while
(Stays wet)