Six plastic sieves with stainless steel mesh, cover and bottom collector.

Convenient pH testing. OHAUS Starter pH Pen Meters offer a convenient way to measure pH, or the relative acidity or alkalinity of a sample at a given temperature. The pH pen meters can be completely operated with just one hand, freeing up your other hand to handle samples.

Separate soil ranging in size from pebbles to silt.

For water clarity measurements.

Three measuring cups with handles.

Lightweight, multi-use storage pail with carrying handle.

Columbus-type caliper with dual scale.

Combination of hydrogen with oxygen generates a DC current to power an electric motor.

Measure inches, centimeters and degrees using this flexible angle ruler.

Premium quality, solid North American Maple.

Determines water's temperature, sediment content and visibility.

Teaches sampling techniques, careful measurement and data recording.

Gather the samples you need regardless of soil type.

Demonstrate the workings of a complete clean energy system on a miniature scale.

Easy-to-use, easy-to-clean, galvanized-steel sampling tube.

An affordable, safe, and reliable screening test to identify lead in drinking water. Ideal for classroom studies or the professional screenng multiple tests on campuses, office buildings, etc.

Convert mechanical energy into electrical energy.

Retrieves with ease — one line means no more tangles.

Unique design for constructing square cubic meters or connecting meter sticks.

Smooth, hardwood solid shapes.

Measures phosphate levels from 0, 100, 200, 300, 500, 1000, 2500 ppb in 15 seconds

An introduction to important aspects of soil science.

Used to determine transparency of water in lakes, streams, oceans.

Extract organisms from soil samples, identify soil organisms, study characteristics of arthropods and compare different soil samples for organism population density.

Design and conduct a scientific investigation. Develop descriptions, explanations, predictions, and models using evidence.

For demonstrating usage.

Durable wood ruler features a metal edge that resists wearing.

60 in. long (150cm) plastic tape.

Determine the degree of visibility when a Secchi disk can't be used.

Dual-purpose protractor.