What is a comparison microscope? What are the advantages of this microscope? A comparison microscope combines two microscopes into one. It allows the viewer to see what is under each of the lenses at the same time. This is helpful when examining a known sample in forensic scinece.
What are the three substances that generally make up paint? Describe each part. The three substances the make up paint are pigment which makes up the color, binder, hit holds the paint together, and solvent which provides the consistency.
What are polymers? They are substances made up of many atoms in a repeated pattern. When two atoms are joined together by chemical ties they form molecules.
What is a scanning electron microscope? What are its advantages? It shoots out a beam of electrons at the item and records the electron emissions that occur. The recorded electron emissions are then shown on a computer screen as the image.
What is the PDQ? What is it used for? A PDQ is a paint data query and it is the lasrgest international automotice paint database.
Critical Thinking Questions
What are some of the challenges for forensic scientists in dealing with fiber evidence? Some of the challenges in fiber evidence is fibers are really hard to see and can be looked over quite easily which I would think is the hardest part of fiber evidence. If you skip one step you can miss out on some very valuable evidence
What does it mean if a paint sample "matches" a known sample from a vehicle? Does this indicate the same source? Why or why not? If the paint sample matches a known sample then that means the same car was involved in the case. This leads us to believe the same source because them being from a different source is not likely.
Why are microscopes important to forensic scientists? Microscopes are used a lot in forensic science so they are extremely important they can be used for looking at paint, blood, fibers and much more. It helps see the small details on any evidence and