Show:
History
Soil Composition
Soil Profiles
Sand
Case Studies
100
What factors influence the soil production?
Temperature, rainfall, chemicals and minerals
100
What is soil?
A mixture of minerals, water, gases, and the remains of dead organisms that covers Earths surface
100
How many soil horizons are there?
6
100
What is weathering?
Formation of soil through the action of wind and water on rock
100
Where was Margaethe Filbert found?
Bavaria, Germany
200
What is geology?
The study of soil and rocks
200
What is a mineral?
A naturally occurring crystalline solid formed over time on Earth
200
Where is the dark soil located?
Horizon A
200
What is sand?
Granules of fine rock particles
200
Where were the soil particles found in Andreas Schlicher's case?
His shoes
300
Who was the first person to use soil to solve a crime?
Georg Popp
300
What is peat composed of?
Decaying organic material
300
Name 3 acidic substances
Battery acid, lemon juice, orange juice, vinegar, breads, rain and milk
300
Explain rounding
Pieces of rocks are over by wind or water, striking against one another continuously
300
Where were Enrique and Alfredo's body originally buried?
In the mountains, far from the shootout
400
Who wrote about the use of geology?
Sir Arthur Conan Doyle
400
What are the three main soil grain sizes?
Sand, silt and clay
400
What is humus?
Material in the upper layers of soil made up of the decaying remains of plants and animals
400
Name 3 types of sand
Continental, volcanic, skeletal, precipitate
400
What was John shot with?
A .308 caliber firearm
500
Who was the first forensic scientist to apply science to crime scene investigation?
Dr.Hans Gross
500
Where is silt found?
Sediment in riverbeds
500
What is leaching?
The removal of minerals and clay as water drips through the soil
500
What are the identifying features of continental sand?
Quartz
500
What was added to the pond water?
Bentonite