"gel+box"

Create your own brick-based electronics projects in minutes with these Crazy Circuits sets.

Hands-on, standards-based lab kit that helps students examines the importance and environmental impacts of mining.

Ideal for reading temperatures in reagents, water baths, foods, air, and semisolids.

Thermometer displays minimum/maximum temperatures for last 24 hours for each hour and previous 7 days for each days; or last 30 days for each day.

MAGNIFIER BOX 1 X 1 X 7/8 4X

Versatile and portable meters for wherever your lessons take you.

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

Direct Feedback trainer.

HOUSEHOLD CEMENT - STIX-ALL GEL 5/8 OZ

Ceric sulfate is the titrant and ferroin is the end point indicator. The method is free from glycol interference in samples that contain up to 75% glycol, making it particularly applicable to systems that contain nitrite corrosion inhibitors. Results are expressed as ppm (mg/L) NaNO2.

The Quick-Read™ Precision Cell microscope slide is designed to provide accuracy, uniformity, and safety in the microscopic examination of urinary sediment. Made from optically clear acrylic, the slide features 10 chambers with integrated coverslips. Within each chamber there are 18 circles that are all together visible at 100x magnification. These pre-measured circles contain specific volumes of urinary sediment within its circumference that allows for the easy calculation of cellular elements present in 1 mL of urine.

Store an entire telescope kit (optical tube, mount, and tripod) in one protected, portable, grab-and-go case.

Discover a whole new way to make art, build modes, fix things, and design wearable items!

Accurately monitor temperatures in freezers, water baths, heating blocks, incubators, and refrigerators with this enclosed temperature-buffered sensor.

Meets AP Science Practices 1, 5, 6, and 7

The RSpec-Explorer™ digital spectrometer is simple to setup and easy to use. Position it on your lab table one or two meters from your light source. There’s no fine-tuning or adjustment necessary. The internal video camera auto-focuses and adjusts for your current light conditions.