"water+bath"

Specially Prepares "Real-Life" Combinations

Reads either pH (in 0.01 resolution) or mV in large digits, with time, date, and temperature (in °C or °F) shown simultaneously on the lower display.

Help students understand the life cycle and habitats of freshwater aquatic macroinvertebrates with this set of colorful flashcards.

Your Students Will Shout Eureka When They Use this Simple Apparatus.

This flexible tape measure comes conveniently in a wind-up roll for easy use.

For holding chemicals in liquid or powder form.

Demonstrates the Effects of Acid Rain

Self-Contained Unit for Use with Any Saw/Grinder

Convienent Classroom Farming.

No Unwieldy Bottles to Carry or Clean

Waterproof Unit Is Completely Safe, Even When Wet

A necessity for any aquaria.

Our ASTM specific gravity hydrometers are calibrated at 60 °F and manufactured to the specifications of the American Society for Testing and Materials (ASTM).

Hands-on, standards-based lab kit that helps students investigate toxins and contaminates from human-made and natural sources.

These durable pH testers feature a replaceable electrode and are ideal for student use in the classroom and field environments.

These durable TDS testers feature a replaceable electrode and are ideal for student use in the classroom and field environments.