Graduated Cylinders are manufactured from roll-proof and easy-to-read plastic. Single metric scale has raised numerals and graduations Flared top and large spout facilitates easy pouring Hexagonal shaped base prevents tipping and rolling 'Nonwetting' surface eliminates concave meniscus and makes reading ...

Emerald is a gemstone and a variety of the mineral beryl (Be3Al2(SiO3)6). Colored green by trace amounts of chromium and/or sometimes vanadium. Beryl has a hardness of 7.5–8 on the Mohs scale. Emeralds in antiquity were mined in Egypt at ...

An authentic shark jaw specimen. Includes real sharp teeth. Measures 3-4" across Note: All once-living specimens are ethically sourced from animals that lived and died in the wild. We cannot ship these items outside of the US.

Highly durable plastic flask

Design in collaboration with Tyler Thrasher. This water bottle is perfect for your next day of fieldwork. Screw top Includes small carabiner Stainless steel

This ribbed shell is a fossil of the order Rhynchonellida. These brachiopods have existed since the Ordovician period 485 million years ago. Their population was severely diminished during the Permian–Triassic extinction event 252 million years ago, but Rhynchonellida became the ...