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  • ph-indicator
Basically Acidic Ink
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Educational Use
Basically Acidic Ink
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Students hypothesize whether vinegar and ammonia-based glass cleaner are acids or bases. They create designs on index cards using these substances as invisible inks. After the index cards have dried, they apply red cabbage juice as an indicator to reveal the designs.

Subject:
Applied Science
Chemistry
Engineering
Geoscience
History
History, Law, Politics
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Christine Hawthorne
Corey Burton
Nicole Stewart
Rachel Howser
Date Added:
09/18/2014
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Breathing Cells
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Educational Use
Breathing Cells
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Students use a simple pH indicator to measure how much CO2 is produced during respiration, at rest and after exercising. They begin by comparing some common household solutions in order to determine the color change of the indicator. They review the concepts of pH and respiration and extend their knowledge to measuring the effectiveness of bioremediation in the environment.

Subject:
Applied Science
Chemistry
Engineering
Physical Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Janet Yowell
Kaelin Cawley
Malinda Schaefer Zarske
Date Added:
10/14/2015
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Chemical Tests Videos
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CC BY-NC-ND
Chemical Tests Videos
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Learn about chemical tests through engaging, bitesize animated videos. They are organised into these chapters: testing gases, testing liquids, pH indicators, testing for ions and separation techniques.

Subject:
Physical Science
Material Type:
Lecture
Date Added:
01/12/2016
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