Page 21 - Jagged Edge Glass Fragment

Pre-Lab

Questions

1. What is trace evidence? 5. If the refractive index of a medium is known
.............................................................................. to be 1.50, and the angle of incidence is 46.8°,
.............................................................................. what is the angle of refraction?
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2. What information can trace evidence provide?
..............................................................................
.............................................................................. 6. When placed in liquid of a different refractive
index, what is the bright outlining halo
surrounding a glass fragment called?
3. What is commonly the first step in glass ..............................................................................
analysis? ..............................................................................

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..............................................................................
7. What are two ways the atomic composition of
a glass fragment may be determined?
4. How is refractive index calculated? ..............................................................................
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THE MYSTERY OF LYLE AND LOUISE 21