Get acquainted with one of the most interesting products of geological processes with this introductory collection of real specimens of metamorphic rock. Metamorphic rocks are formed by pressure and heat that may or may not be influenced by the introduction of chemically active solutions - they are an example of how pressure and heat, typically associated with destructive forces, can yield creation; examples include schist, serpentine, and quartzite. The Metamorphic Rock Bag is an economy collection of 6 specimens representative of the metamorphic rock family. Each generous specimen is 1.25" to 1.5" and is contained in a zip lock bag with a label.
Box of 100 X-SMALL nitrile exam gloves.
Box of 100 X-LARGE nitrile exam gloves.
This set includes four (4) N95 NIOSH approved respirators.
This set includes three (3) N95 FDA registered and NIOSH approved and respirators.
These goggles meet the American National Standards Institution (ANSI Z87.1) and Canadian Standards (CSA Z94.3) regulations.
Save with this large package of 300 medium-size nitrile exam gloves!
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.
Defy gravity with this cool balancing eagle!
This caffeine molecule mug makes an excellent gift!
This is a great clean heat demonstration model for the classroom setting!
Discover how solar cells make electricity with this awesome kit!
Watch what your music can create with this amazing Snap Circuits set!
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