When ATF officer Nikki Davis apparently commits suicide, the sound of the gunshot was recorded from multiple sources. Charlie's attempts to recreate the "acoustic fingerprint" of the shot are unsuccessful until he realizes that the key may lie in the way bats use sounds to "see." A bat emits a sound wave, and by hearing how long it takes the echo to return, its brain automatically knows how far away an object is
Before the Activity
Download the attached PDF and look over the Teacher Page.
During the Activity
Discuss the materials from the Student Page with your class.
After the Activity
Encourage students to explore web sites and questions from the Extensions page.