"activities&amp"

The Digital Control Unit (DCU) makes it easy to use the digital output lines of an interface to control DC electrical devices.

Bacdown® Gel No-Rinse Skin Cleaner is for professional laboratory and healthcare use where soap and water are not available. Bacdown® Gel's formula is gentle on skin and meets OSHA requirements as a hand cleanser.

Test method: The Peracetic Acid CHEMets® test kit (0 to 1 and 0 to 5 ppm) employs the DPD chemistry. The sample is treated with an excess of potassium iodide. Peracetic acid oxidizes the iodide to iodine. The iodine then oxidizes DPD (N,N-diethyl-p-phenylenediamine) to form a pink colored species in direct proportion to the peracetic acid concentration. Various oxidizing agents such as halogens, ferric ions and cupric ions will produce high test results. Hydrogen peroxide does not interfere with this test if present at levels comparable to the peracetic acid levels.

ACTIVITY WHEELCAGE MOUSE LCD COUNTER

ANY-MAZE ACTIVITY WHEEL MOUSE

OPEN FIELD ACTIVITY 100CM OPAQUE

OPEN FIELD ACTIVITY 100CM CLEAR

ANY-MAZE ACTIVITY WHEEL RAT

Improve student test scores and involve parents in the process fun, exciting, interactive, and inclusive, these sets of content-based games help students master curriculum outlined in the current NSES Standards for grades 1 to 8.

Everything you'll need to recreate a successful marine reef.

All-in-one handheld tester for monitoring pH, nutrients, and water quality in hydroponic and agricultural systems.

The Vacu-vials® instrumental test kits employ the DPD chemistry and are accepted by the USEPA for wastewater and drinking water analysis.

Portable pocket microscope for on-the-go magnification and scientific exploration.

A general-purpose pH sensor used to monitor pH of aqueous solutions.

The Go Direct O₂ Gas Sensor measures gaseous oxygen concentration levels and air temperature.

Engaging inerlocking model for exploring how Earth’s landforms form and interact.