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Salty Pits
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CC BY-NC-SA
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In this activity, learners explore how different deodorants work. Learners treat agar plates with different types of deodorants and compare the bacteria growth on the plates to the control sample.

Subject:
Biology
Life Science
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Don Rathjen
Julie Yu
National Science Foundation
The Exploratorium
Date Added:
10/31/2007
Sweat Spot
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this activity, learners use a chemical reaction to visualize where moisture forms on the body. Learners use the Minor's iodine-starch test, a diagnostic test that doctors use to detect hyperhidrosis (excessive sweating), to identify where moisture is forming. Learners also use this method to test the effectiveness of different antiperspirants.

Subject:
Chemistry
Physical Science
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Julie Yu
National Science Foundation
The Exploratorium
Date Added:
11/07/2007