Science: Forensics Case 2 - Bouncing Back: Using ground-penetrating radar to locate buried objects

by Texas Instruments

Overview

In this activity, students gather data to explore the use of ground-penetrating radar (GPR) to find buried materials. They use a range finder to detect the presence of an object and to distinguish between different-shaped objects. They find the buried car and help solve a case.

Key Steps

Large empty boxes with different objects or not objects are used to simulate plots of ground containing buried materials. A CBR2 is used as the Ground-Penetrating Radar (GPR).
Students are looking for the buried car of the oil magnate's wife. This requires analyzing distance-time graphs made with the CBR2 scanning several boxes that may or may not contain the "buried" car.

Related Activities

Murder in the First Degree - The Death of Mr. Spud
Forensics Case 3 - Name That Tune: Matching musical tones through waveform analysis
Forensics Case 4 - Flipping Coins: Density as a characteristic property
Forensics Case 5 - The Ink Is Still Wet: Using colorimetry to identify an unknown ink
Forensics Case 6 - Measuring Momentum: Using distance moved after impact to estimate velocity
Forensics Case 7 - Drug Tests: Identifying an unknown chemical
Forensics Case 8 - No Dumping: Using soil characteristics to link suspects to a crime scene
Forensics Case 9 - Killer Cup of Coffee: Using colorimetry to determine concentration of a poison
Forensics Case 10 - Dropped at the Scene: Blood spatter analysis
Forensics Case 11 - Ashes to Ashes: Using evaporation rate to identify an unknown liquid
Forensics Case 12 - Hit and Run: Using information from an event data recorder to reconstruct an ac
Forensics Case 13 - Life in the Fast Lane: Using skid marks to determine vehicle speed
Forensics Case 14—Hot Air, Cold Body: Using Newton's Law of Cooling to Determine Time of Death

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Science: Forensics Case 2 - Bouncing Back: Using ground-penetrating radar to locate buried objects

Overview

Key Steps

Murder in the First Degree - The Death of Mr. Spud

Forensics Case 3 - Name That Tune: Matching musical tones through waveform analysis

Forensics Case 4 - Flipping Coins: Density as a characteristic property

Forensics Case 5 - The Ink Is Still Wet: Using colorimetry to identify an unknown ink

Forensics Case 6 - Measuring Momentum: Using distance moved after impact to estimate velocity

Forensics Case 7 - Drug Tests: Identifying an unknown chemical

Forensics Case 8 - No Dumping: Using soil characteristics to link suspects to a crime scene

Forensics Case 9 - Killer Cup of Coffee: Using colorimetry to determine concentration of a poison

Forensics Case 10 - Dropped at the Scene: Blood spatter analysis

Forensics Case 11 - Ashes to Ashes: Using evaporation rate to identify an unknown liquid

Forensics Case 12 - Hit and Run: Using information from an event data recorder to reconstruct an ac

Forensics Case 13 - Life in the Fast Lane: Using skid marks to determine vehicle speed

Forensics Case 14—Hot Air, Cold Body: Using Newton's Law of Cooling to Determine Time of Death

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