"The Mystery of Lyle and Louise"

Keep your grip and protect your hand.

Reveal the Nature of Color and Light

Shiny black volcanic glass showing conchoidal fracture and some spherulites.

Brownish black, intermediate stage between peat and bituminous coal.

Unpolished metamorphic rock with silky lusture, red-brown colour, and clear parallel intergrown quartz crystals.

Note: The chemical specifications for some items on this product page may differ from the specifications listed above. For more information, consult the Safety Data Sheet or contact your Ward's representative.

Protect Clothing from Spills and Splashes

Explore our planet like never before!

These 25 person bulk first aid kits meet OSHA and ANSI standards, and are designed for use in small offices, vehicles, and work sites.

One Racer, Endless Design Possibilities

Attaches to the end of the Vernier Dynamics Track to prevent the cart from leaving the track.

Use a new wheel every time.

File Folder

Ten Lab Safety Practices Every Student Should Know

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.

Pre-mixed, and ready to use, this master mix contains DNA polymerase, dNTPs, MgCl₂, and reaction buffers at optimal concentrations for the amplification of DNA via PCR. Its special formulation allows for direct loading of PCR samples into agarose gels as well as tracking the migration during electrophoresis without the need for loading dyes. Simply add template, primers, and nuclease-free water, available separately. Mater Mix reduces risk of contamination. Includes enough for 100 reactions. Note: Can be stored at 4 °C for up to six weeks, or −20 °C for longer.