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Acid Rain
189
Environmental Science—Acid Rain
Acid Neutralization in Nature—
Demonstration Kit
Perform this safe demonstration to show how natu-
rally occurring elements can neutralize acid rain.
Students will learn how the chemical makeup of soil can act as a buffer and alter the pH of rainwater. The acid neutralizing ability of two different soil types will be compared and contrasted in this colorful demonstration. Demonstration Notes included.
Concepts: Acid rain, pH, soil types.
Time Required: 15 minutes
Materials Provided: Granite chips, marble chips, hydrochloric acid solution.
Acid Rain and Plants—
Student Laboratory Kit
What is acid rain and how does it affect nature? In
this experiment, rain solutions of varying pH will be placed on plant seedlings. The harmful effects of acid rain are dramatic! Students will gain in-depth knowledge of what acid rain is, how it forms and its devastating effects. Instructor’s Notes, reproducible student handouts, and all necessary chemicals and specialized equipment are provided.
Complete for 30 students working in pairs.
Acid Rain in a Bag—Demonstration Kit
By: Sue Anne Berger
Colorado School of Mines, Evergreen, CO
Perform a safe, microscale simulation of acid rain formation in a plastic bag. Chemicals react to form a visible brown cloud of nitrogen dioxide which, in turn, acidifies water present in the system. An acid–base indicator shows the speed and degree to which the pH is altered. The results are direct and unmistakable—and it all takes place within a bag on an overhead projector! Materials supplied to perform the demonstra- tion seven times.
Concepts: Environmental chemistry, acid–base indicators.
Time Required: 15 minutes
Materials Provided: Zipper-lock bag, 12-well reaction plate, copper wire, nitric acid solution, and universal indicator solution.
Note: Perform this demonstration in a fume hood or well-ventilated lab.
Nitrogen Oxides and Acid Rain—
Demonstration Kit
By: The Flinn Staff
When nitrogen and oxygen combine under certain conditions, the results can be devastating. In this demonstration, nitrogen oxides are generated by the dissolution of copper in nitric acid and the resulting gases bubbled into a larger container of water containing an indicator. As the water shifts from near neutral to highly acidic, the color change is dramatic and unmistakable. And just when the reaction appears to be complete...a breathtaking surprise! Accentuate your discussion of acid rain and its causes with this remarkable demonstration. Teacher Demonstration Notes included.
Concepts: Environmental chemistry, acid–base indicators.
Time Required: 15 minutes
Materials Provided: Phenol red solution, nitric acid, filtering flask, Parafilm®, plastic tubing, and rubber stoppers.
Note: Pre-1982 pennies and a large flask are needed, but not provided. Perform this demonstration in a fume hood or well-ventilated lab.
Acid Neutralization in Nature—Demonstration Kit AP6298
Acid Rain and Plants—Student Laboratory Kit AP6300
Catalog No.
Description
Price/Each
AP6298
Acid Neutralization in Nature—Demonstration Kit
$20.70
Catalog No.
Description
Price/Each
AP6300
Acid Rain and Plants—Student Laboratory Kit
$84.35
Catalog No.
Description
Price/Each
AP9157
Acid Rain in a Bag—Demonstration Kit
$25.45
Acid Rain in a Bag—Demonstration Kit AP9157
Catalog No.
Description
Price/Each
FB0011
Nitrogen Oxides and Acid Rain—Demonstration Kit
$74.25
ENVIRONMENTAL SCIENCE—ACID RAIN continued on next page.
Nitrogen Oxides and Acid Rain—Demonstration Kit FB0011