"Freeze-Dried Specimens"

Large, black, rounded tektite, 1 1/2". Thailand.

Ward’s® PURE Preserved Specimens - the best dissection experience from start to finish.

1 pound of black sand packaged in a heat-sealed bag.

These wide-mouth flint glass jars come with phenolic lids.

Store cultures, specimens or other items in these handy clear plastic vials.

A set of 15 samples of different materials used to challenge students to identify materials based on measurement of their density. For some specimens this will be straightforward. In other cases, it will lead to a discussion of uncertainty in measurements and data, and to an awareness that different materials may have nearly the same density.

CAS Number: 7440-02-0
Formula Weight: 58.71
Formula: Ni
Density (g/mL): 8.90
Boiling Point (°C): 2732
Freezing Point (°C): 1452
Shelf Life (months): 36
Storage: Red

Economy glass burette choice.

These activities are designed to meet exam requirements for the regents exam part D.