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The Case of the Barking Dog, Episode 2

Wolves in the snow

Product Type: Video Learning Clip
Audience: Educators, Students
Grade Levels: K-8
Year: 2000
Subjects: Careers

This NASA video segment explores how the ear works and how people and dogs hear differently. The segment is part of the NASA SCIFiles program, which features the Tree House Detectives, a group of young students who work together to solve everyday problems. In this segment the detectives try to solve the problem of barking dogs in their town. The detectives visit an audiologist and learn that sound travels from the outer ear, through the ear and to the auditory nerve where it is interpreted by the brain. The detectives also visit a veterinarian who explains that dogs can hear higher frequencies than humans. A demonstration with Dr. D., a neighborhood scientist, shows that there is an inverse relationship between sound and distance.

The Case of the Barking Dog, Episode 2
Duration:  13 minutes 13 seconds
> View QuickTime [43MB]

Other video learning clips in this series:
The Case of the Barking Dog, Episode 1
The Case of the Barking Dog, Episode 3
The Case of the Barking Dog, Episode 4
Problem-Solving Using the Scientific Method
Investigating the Properties of Sound
Following the Scientific Method: Collecting, Organizing and Analyzing Data
Our Ears and How They Work
The Effect of Sound Levels on the Human Ear
The Hearing Ability of Dogs
NASA's Anechoic Chamber for Sound Research
Experimenting With Echoes
Variables That Affect the Speed of Sound
Understanding Sonic Booms
How and Why Bats Use High-Frequency Sounds to Navigate
Demonstrating the Difference Between High- and Low-Frequency Sounds

Page Last Updated: December 12th, 2014
Page Editor: Flint Wild