"Wardssci090081"

High density polyethylene.

The Only Tabletop Composting Activity on the Market Today

Used for incubating diluted samples to determine biological oxygen demand.

This user-friendly meter has a long battery life and plenty of helpful functions.

An economical set of durable sieve that will hold up to tough use.

In this activity, students explore methods to treat wastewater by creating a laboratory model that simulates large-scale commercial water treatment methods.

Designed for direct measurement.

Customize your own insect net, or replace existing parts.