Forensic 4/4/23 5th

In what order does the siol settle during sedimentation

• Sand on the bottom, silt in the middle, and clay on the top

• Sand is on the top, Clay is in the middle, and the dirt is on the bottom

• The water is on the top, the soil is the middle, and the clay is on the bottom.

What are the four types of soil structure we talked about?

• Granular, blocky, prismatic, and platy

• Granular, soil, sand, and water

• Water, sand, dirt, and soil

• Granular, prismatic, corris, and endome

Where can we find high levels of nitrates

• Gravesites, fertilizer, compost bin, and anything that has a lot of organic matter

• Anything without organic matter

• Only the ocean has the best high levels of nitrate

What is an extender ?

• Pigment , gives color, and reduces cost

• The price of the rust when it its taken

• A tool used to gather paint in hard to reach areas

What part of the paint dries to form a film ?

• Resin

• Rust

• Pigment

• Color

How many layers are there in car paint ?

• 4 layers

• 3 layers

• 2 layers

What characteristics of paint eliminates up to 93% of suspects

• color

• pigment

• Acetone

What tests tells if a paint is lacquer or enamel ?

• Acetone

• Pigment test

• Rust test

What are zinc oxide and titanium dioxide used for ?

• Used as pigments

• Used as rust paint

What are some common pieces to trace evidence we can look at ?

• (Paint, soil, glass, body fluids)

• Pigments and rust particles

• The DNA