Soil • You need two regular size papers per group • one of each of the charts (that’s two different ones) for each group member. • One big piece of paper • Your spiral
You need two regular size papers per group You need two regular size papers per group one of each of the charts (thats two different ones) for each group.
Mar 29, 2015
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Soil
• You need two regular size papers per group
• one of each of the charts (that’s two different ones) for each group member.
• One big piece of paper• Your spiral
You have ten minutes
Factor Effects of Soil
Bad Good
Parent material
Climate
Organisms
Time
Soil= connects the living and the
nonliving world
Factor Effects of Soil
Bad Good
Parent material Quartz (Atlantic coast) Calcium carbonate (Vermont)
Climate
Organisms
Time
Soil= connects the living and the
nonliving world
Factor Effects of Soil
Bad Good
Parent material Quartz (Atlantic coast) Calcium carbonate (Vermont)
Climate Higher latitude (less decomposing)
Tropics (decomposition is accelerated)
Organisms
Time
Soil= connects the living and the
nonliving world
Factor Effects of Soil
Bad Good
Parent material
Quartz (Atlantic coast) Calcium carbonate (Vermont)
Climate Higher latitude (less decomposing)
Tropics (decomposition is accelerated)
Organisms Remove nutrients Plants aid in chemical weathering and animals distribute minerals and organic material more evenly.
Time
Soil= connects the living and the
nonliving world
Factor Effects of Soil
Bad Good
Parent material
Quartz (Atlantic coast) Calcium carbonate (Vermont)
Climate Higher latitude (less decomposing)
Tropics (decomposition is accelerated)
Organisms Remove nutrients Plants aid in chemical weathering and animals distribute minerals and organic material more evenly.
Time Young soil= not a lot of organic material
Old soil= more time to accumulate organic material
Soil= connects the living and the
nonliving world
Soil Horizons
A Horizon: mineral horizon (shows organic matter enrichment
C Horizon: least weathered horizon
O Horizon: leaf litter and organic material found
B Horizon: where most minerals and nutrients are found (also called the subsoil)
E Horizon: only in acidic soils( known as the zone of leaching)
R Horizon: Bedrock
Soil Horizons
Soil
• You need two regular size papers per group
• Your charts from yesterday• One big piece of paper (if you used one
yesterday)• Your spiral
Texture: The percentages of sand, silt and clay. Porosity/permeability: how quickly soil drains.
Physical Properties
Size Advantages Disadvantages Porosity
Sand
Silt
Clay
Size Advantages Disadvantages Porosity
Sand Large Easy for roots to penetrate
Pollutants move through too quickly
and get to the ground water
Quickly
Size Advantages Disadvantages Porosity
Sand Large Easy for roots to penetrate
Pollutants move through too quickly
and get to the ground water
Quickly
Silt Medium Growing crops Nutrients can be leached out.
medium
Size Advantages Disadvantages Porosity
Sand Large Easy for roots to penetrate
Pollutants move through too quickly
and get to the ground water
Quickly
Silt Medium Growing crops Nutrients can be leached out.
medium
Clay Small Keeps contaminants
in the soil
Holds too much water
slow
Lets practice
1. 10: sand, 20: silt, 70 clay2. 20 sand, 10 silt, 70 clay3. 70 sand,
Related Documents
