A
Air Bottle Models
Help students see the gases in the Earth’s atmosphere with one million different-colored
spheres and what it means for a contaminant to be found in a concentration of one part
per million with a lone black sphere among 999,999 yellow ones in these 3-liter models.
A. AP7558—Air in a Bottle—Demonstration Model—$55.40
B. AP4854—Becker Bottle “One in a Million Too”—$50.85
Weather Center
Measure barometric pressure, relative humidity and
air temperature, and record the trends, averages and
highs and lows. 3" diameter dials nest in carrying case.
AP9339—$43.00
ENVIRONMENTAL SCIENCE
Water Quality Educator and
Monitoring Outfit
Complete modular program for testing the quality of
your water. Includes CD-ROM and durable fabric tote.
AP5287—$447.70
Dissolved Oxygen Meter
One-hand operation and automatic temperature
compensation and calibration to air allows students
to determine water quality.
FB2008—$299.25
Effects of Air Pollution Kit
Prepare a controlled environment and generate
sulfur dioxide to demonstrate the harmful effects of
contaminated air on plants.
AP6000—$99.20
ENVIRONMENTAL AWARENESS
Help students explore the natural world and
increase their awareness of the consequences
of human activity on the environment.
B
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