"Orangé de méthyle"

A versatile marking tool.

A wireless water alert system that helps schools detect leaks early to prevent damage and teach real-world monitoring technology.

Users can observe the sensitivity of various bacteria and fungi to an array of antibiotics with these convenient kits.

Cigarette Solution / Cigarette Water Extract

Measures a wide range of temperatures.

Reinforce understanding of the many powerful forces at work in creating and re-creating rocks with the 75 review cards featured in this fun game.

Celestron’s signature orange-tube telescope combines advanced features and excellent optics in one easy-to-use system.

This rugged temperature probe features a wide temperature range, from –20 to 330 °C.

Graphically illustrate the fact that like charges repel each other.
The multi-colored ribbons are connected to a suction cup that sits on top of a Van de Graaff generator. As the generator operates, the ribbons accumulate a charge and stand on end.

Measuring the temperature of a distillation has never been safer-your students can conduct an experiment within the laboratory fume hood while collecting data at their lab station.

A great addition to your outdoor weather station, these airport quality windsocks are bright orange with reinforced eyelets. Brackets are attached to the windsock by quick lock nylon binding strips so they are easy to replace. Size of windsock: 4" x 15". Size of bracket: 4".

Made of PYREX® borosilicate glass, with linerless, one-piece, orange PP screw cap with a drip-free pouring ring.

Made of PYREX® borosilicate glass, with linerless, one-piece, orange PP screw cap with a drip-free pouring ring.

Great for biology and sediment studies.

Light, porous mica medium retains moisture well, making it excellent for starting seeds or as a soil additive.

Naturally low pH bog soil; ideal for insectivorous plants and other species requiring acidic soil.