"SILICO & chemical PORCELAIN SE"

The AquaClear Power Filters features a unique multi-stage filtration system that provides complete mechanical, chemical and biological filtration for superior water quality. The Power Filter has a filtration volume that is up to seven times larger than comparable filters. It also allows superior contact time with filter media. The filter preserves beneficial bacterial creating a stress-free environment for aquarium inhabitants and maintaining clear aquarium water.

Students use several techniques to investigate the location, methods, and mechanisms of transpiration in plants. Students first determine the source of water loss and confirm their findings with a qualitative chemical test. Then they prepare microscope slides of xylem in stem tissue, and prepare a leaf imprint using an innovative method that vividly highlights stomate structures. Finally, using WARD’S specially-designed potometer and supplied materials, students subject bean seedlings to varying environmental conditions to determine how transpiration is affected. You’ll get enough materials for eight setups, a teacher’s guide, and student copymaster.

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Mix hands on and digital!

Useful anywhere desiccation is needed, these 72 mm cartridges contain inert, non-corrosive, and non-toxic silica gel.

The Explore with Me Geology™ series kits are the perfect starter sets for budding geologists. Each collection of ten specimens is enclosed in a handy, plastic storage container. A rock identification chart with images and descriptions helps students better understand each specimen. Appropriate for grades three through twelve.

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Ideal for a variety of uses.

Recharge the TI-84 Plus CE with ease.

The Handheld Discharge Electrodeeasily and safely discharges an electrostatic generator.

This excellent quality electrostatic generator consists of a charge generation system, an aluminum collector sphere, and an electric motor drive on a sturdy base.

This chart displays detailed and up-to-date information.

Go beyond the basic information with useful element data to help students see periodic trends.

Time lab activities with precision.

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Our most complete periodic table.

Plenty of element data for serious chemistry students.

All-in-one pipettes.

This PLA filament is enhanced to improve the toughness of 3D builds.