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EARTH SYSTEMS: ATMOSPHERE, continued
NeuLog Carbon Dioxide Logger Sensor
Accurately measure CO2 levels in both the field and laboratory! Practical for any field of study, this sensor can be used to measure levels of CO2 in ecological systems, combus- tion reactions, chemical solutions, hydrogen peroxide decomposition and the study of photosynthesis. Bottle and plant not included. AP8110 I $252.75
NeuLog Oxygen Logger Sensor
Determine the levels of free oxygen in air or dissolved oxygen in water. Oxygen sensor is practical for testing in the laboratory or the field with the two different modes of oper- ation. Polarographic technology make this device easy to use, and its integral thermistor provides dependable temperature-compen- sated measurements. Experiment duration from 1 second to 31 days.
AP8206 I $214.55
Air in a Bottle—
Demonstration Model
The 3-liter model contains one million differ- ent colored spheres. Each color represents
a different gas found in the Earth’s atmo- sphere. As students examine the model, they are challenged to determine which color represents which gas. A great educational value that can be easily incorporated into your lessons for many years to come! AP7558 I $55.40
Flinn Weather Activity Kit
Can you predict the weather? This all-inclu- sive weather activity kit shows your students the simple tools and techniques that are used to measure atmospheric conditions and predict weather. Students record precip- itation data, see how a sling psychrometer measures relative humidity and dew point, take wind measurements and create their own barometer. Enough materials for 30 students working in pairs.
AP5074 I $54.20
Anemometer, Working Model
This anemometer consists of four cups (5 cm diameter) mounted on a low-friction axle securely affixed to a molded plastic base for stability. The super-smooth, cone-bearing hub allows the anemometer to rotate in breezes as gentle as two miles per hour. One cup is painted a high-contrast color to facilitate counting of rotations. Complete with instructions for classroom demonstration.
FB0508 I $21.70
EARTH SYSTEMS
I FLINN SCIENTIFIC 5