Designed for the testing and study of saline systems – oceans, bays, salt marshes, etc. This field-friendly outfit contains individual test modules for seven key salt water test factors, water sampling bottles, three supplemental handbooks now available as a download, and data sheets. The downloadable handbooks include A Laboratory Manual for Marine Science, Limnology, and Investigating Water Problems.
Colonize submerged leaves in stream habitats. The ability of freshwater macroinvertebrates to flourish depends upon the properties of the water and conditions in the environment. The relative abundance and variety of freshwater macroinvertebrates can be used as bioindicators to assess the quality of the water and the effects of land use on the environment.
This kit tests for nitrate and phosphate in water using the LRC Comparator. Range/sensitivity is 0.2, 0.4, 0.6, 1.0 ppm NO3–N; 0.2, 0.4, 0.6, 1.0 ppm PO43–.
These 6″ x 4″ (15 x 10cm) plastic zipper top bags have instructions for collection and preparation of soil samples printed directly on each bag. By preventing contamination or accidental mixing of different samples, these convenient soil bags help insure accurate test results.
Package of 100.
Determine turbidity or degree of visibility in natural waters with this weighted 20 cm diameter disk.
Too Shallow for a Secchi Disk? Turbidity is easily measured by using a standardized turbidity reagent to match the turbidity of a water sample. All the necessary apparatus and reagents needed to test four basic water quality test factors and detailed instructions are housed in a secure foam insert within a rugged field carrying case. Economical reagent refill packages are available for either the entire outfit or individual reagents.
Help kids understand the life cycle and habitats of freshwater aquatic macroinvertebrates with this set of flashcards and manual. The 22 full-color cards feature photos of both immature and adult insect stages, and detail life cycle and habitat information. The accompanying manual contains facts on insect characteristics, life cycles, taxonomy, classification, food webs and how macroinvertebrates can be indicators of water quality.
Instructions for activities with the cards are included. The Freshwater Aquatic Macroinvertebrate: Insect Life Cycle and Habitat Flashcards can be used as an extension to the Freshwater Aquatic Macroinvertebrate: Identification Flashcards and the Leaf Pack Experiments Stream Ecology Kit.
This kit tests for Nitrate-Nitrogen using the LRC Comparator. Range/sensitivity is 0, 0.2, 0.4, 0.6, 0.8, 1.0 ppm NO3-N.
Safe, easy, and economical! Students can perform up to fifty tests each for nitrogen, phosphorus, and potassium levels using non-hazardous TesTabs®. Each kit includes the necessary apparatus, simple diagrammed instructions, and a laminated color chart.
The NPK Soil Test Kit was specifically designed to meet the needs of the GLOBE Program™ (Global Learning and Observations to Benefit the Environment). This soil test kit is fun to use and easy to ship anywhere! Ideal for upper elementary, middle, and high school students.
Collect water samples quickly and easily! This newly designed horizontal water sampler allows water to be sampled at specific depths. A 20 meter calibrated line, marked at one meter intervals, is included. The clear acrylic tube allows a visual inspection of the sample prior to dispensing and holds approximately 1,200 mL of sample.
Send the weighted messenger down the line to trip the closing mechanism at the desired depth.