1. SOIL

2. Soil – a loose mixture of small mineral fragments, organic material, water, and air that can support plant life.

3. Parent rock – the rock that is the source of the soil
IS THE SOURCE OF ROCK FOR

4. Parent rock

5. Bedrock – the layer of rock beneath the soil

6. Soil Composition – All soil is made of different amounts of ...
SAND SILT CLAY

8. Soil Composition

9. What types of soil are these?
Soil Texture – the soil quality that is based on the proportion of soil sand, silt, and clay
For example, a soil that has a texture of 60% sand, 30% silt, and 10% clay would be sandy loam
What types of soil are these?
3% Sand
60% Silt
10% Clay
50% Sand
10% Silt
40% Clay

10. 30% Sand
40% Silt
30% Clay
30% Sand
60% Silt
10% Clay
50% Sand
10% Silt
40% Clay

11. 30% Sand
40% Silt
30% Clay
30% Sand
60% Silt
10% Clay
50% Sand
10% Silt
40% Clay

12. Soil Structure-
The arrangement of soil
particles and is influenced by
texture, air, moisture, and
organic matter.

13. Soil Fertility –
a soil’s ability to hold
and supply nutrients
for plants

14. Humus – the dark,
organic material formed
in soil from the decayed
remains of plants and animals

15. Soil Horizons
The different
layers of soil

16. Top Soil – the top layer of soil where the most humus is found

17. Leaching - the removal of substances that can be dissolved from rock, ore, or layers of soil due to the passing of water

18. Soil pH – tells how acidic (0) or basic (14) the soil is on a scale from 0 to 14