Name: ____________________________ Date: _________________
Test Review Chapters 4 & 5
Answer questions on lined paper.
Chapter 4
1. What are the ingredients in glass?
2. Describe the type of solid glass is.
3. As light travels through air and hits another medium like water, what happens to the speed and
angle of the light ray?
4. Explain how glass breaks. Include elasticity in your answer.
5. Where are laminated and tempered glass found? What does each consist of?
6. A hot stage microscope is used to determine the _______________ of glass fragments.
7. When discussing concentric and radial fractures, which forms first and where do they appear in
regards to the side of impact?
8. Name the two most important physical properties of glass.
9. The refractive index is a ratio of ________________________.
10. Define the immersion method. Include immersion oil and Becke line in this response.
11. Describe the proper collection of glass evidence.
12. Describe the Glass density lab in detail.
Chapter 5
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Describe narcotics and stimulants. Identify 3 drugs under each type.
What is the difference between a screening test and a confirmatory test?
Which screening test checks for LSD. Cocaine? Know the 5 color tests!
What test studies the crystals formed by a substance?
Describe paper chromatography.
How does a mixture separate into components in gas chromatography?
Define retention time.
What is spectrophotometry?
What happens in Infrared spectrophotometry? How do the results help determine the identity of a
drug?
10. What are the major drawbacks of gas chromatography and mass spectrometry?
11. What technique has to be paired with mass spectrometry to determine the correct identity of a
drug?