Page 7 - Demo

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EARTH SYSTEMS: WATER, continued
BOD Bottle, 300 mL
Collect and incubate water samples for accurate dissolved oxygen and Biochemical Oxygen Demand (BOD) readings for field studies and water sampling in environmental science. 300 mL capacity.
AP6209 I $14.75
Thermometer, Armored
Spirit-filled thermometer encased in tough plastic armor with window opening for easy reading, ideal for field studies in environmen- tal science. Tie-loop is provided at the top
of the armor, allowing the instrument to be easily lowered into the water.
AB1145 I $24.50
Secchi Disc
A relative estimate of the phosphate concen- tration of a lake can be made using a Secchi disk to determine water clarity. The disk is lowered into the water and the depth at which it is no longer visible is recorded. Light extinction depth is determined and helps estimate the microscopic plant and animal life supported by the water.
AP7175 I $61.25
Water Sampler
An efficient way to sample water from any desired depth. This water sampler includes
a unique trigger mechanism that requires
only one line to raise and lower the sample chamber and also seal the chamber. The flow- through design of the sampler allows an ample 1.5-liter volume of water to be retrieved. AB1149 I $96.95
Aquatic Collecting Starter Kit
Ready to head to your local river, pond
or stream for environmental studies? Our basic collecting set provides all necessary equipment to get started. Materials can be conveniently carried to the collection site in the large, durable collection bucket included in the kit.
FB1580 I $63.70
Stream Ecology Kit
Collect and identify macroinvertebrates in your local stream. Students will discover the value of macroinvertebrates as living indica- tors of water quality. Kit features a detailed, 18-card set of macroinvertebrate flashcards that provide an easy way to identify exactly what insect you collect.
AP6509 I $220.00
See more water sampling equipment
at flinnsci.com
EARTH SYSTEMS I FLINN SCIENTIFIC 7