Page 6 - Shot In The Dark Bullet Striations

During Lab 2, students will need to take accurate conclusion. If students finish quickly, it would likely
and detailed meaurements before comparing prove beneficial to take additional measurements
information with their groups in order to arrive at a to ensure accuracy.

NOTES

Prior to performing the web activity, the teacher should create an account to access the Virtual
Comparison Microscope.

www.firearmsid.com>Resource Area>
Virtual Comparison Microscope

All students may use the same login and password, therefore the instructor should make a generic
username and password for the entire class.

When performing Lab 1, instruct students to be attentive and careful not to mix up the bullets. When
returning bullets to the case, students must know which is Bullet A and Bullet B. If desired, place a
sticker or mark on the end of one bullet to keep them separate, however, students should be able,
and are encouraged, to examine the markings on the ends of the bullets as well, so care should be
taken to not obscure the striae if marking the bullet.

6 THE MYSTERY OF LYLE AND LOUISE