Page 20 - Demo

Effects of Chemical and Thermal Pollution—Student Laboratory Kit
Students will see the effects of chemical and thermal pollution first hand when they perform this intriguing experiment. Students introduce yeast to different environmental conditions and use Bromthymol blue to determine viability under these various conditions. An excellent activity to show how chemical and thermal pollution can affect water quality and alter the life cycles of organisms! Complete with Teacher Notes, reproducible student handouts and enough materials for 5 groups of students.
Examine the effects of common pollutants on an organism that is abundant in all aquatic envi- ronments—algae! Simulated fertilizer run-off containing nitrates and phosphates is added
to locally collected algae-rich pond water or to purchased algae cultures. Growth is compared against control samples without adding nutri- ents. Students also examine the algal cells using a microscope and record cell counts. Students will understand how fertilizer run-off leads
to algae blooms and why nitrate and phos- phate pollution is an important environmental concern. Materials provided for a class of 30 students working in pairs.
AP7377 | $68.10
Water Treatment Activity Model
Students build their own model of a sewage treatment plant—complete with filtration, aeration and bioremediation capabilities. Durable plastic model is accompanied by all materials needed to test and treat water, including filter paper, simulated pollutants, bioremediation agents, air pump and test materials. Comprehensive teacher’s guide and student copy masters are included. Model size: 131⁄4" L x 41⁄2" W x 171⁄4" H. AP5312 | $249.80
FB1795 | $65.90
Student Laboratory Kit
1-800-452-1261 FLINNSCI.COM
WATER POLLUTION, continued
Why Is the Water Green?
Testing Pollution in Tapwater Kit
Determine the quality of tap water in your area by using accurate and reliable color comparison tests. Students will investigate the water quality and pollution levels of local drinking water. AP5955 and AP5956 include tests for chlorine, total hardness, iron, copper and pH. Kit also includes a detailed back- ground section on water pollution, sources and effects of each factor tested, color comparison charts, reproducible student handouts and a teacher’s guide with, answers and extensions.
AP5955 AP5956
AP6126
AP6137 AP6142 AP6144 AP6141
$ 86.75 196.65 7.45
8.95 11.75 12.50 13.25
CATALOG NO.
DESCRIPTION
TYPE
PRICE/EACH
Testing Pollution in Tap Water Kit
Single-Class Kit
Testing Pollution in Tap Water Super Value Kit
Five-Class Kit
Replacement Testing Pollution in Tap Water Color Comparison Charts
Chlorine in Water Test Kit
Replacement Kit
Individual Kit
Iron in Water Test Kit
Individual Kit
Copper in Water Test Kit
Individual Kit
pH of Water Test Kit
Individual Kit
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FLINN SCIENTIFIC I WATER POLLUTION