"The Mystery of Lyle and Louise"

Pure, large, transparent-to-translucent cleavages, Mohs’ hardness of 4.

Chlorite-bearing.

Lustrous, black 'hard coal'.

Useful for metal filing or glass cutting.

Examine how a microscope works.

Heavy metal rods with threaded ends that screw into retort bases.

Specially prepared sediment mixes for use with stream tables.

Glass rods with one spade end and one button end for stirring, scooping, and crushing.

Explore the role Of respiratory system in regulation of blood gases.

Keep nails neat and clean.

Bulk hole plates to expand your TeacherGeek collection

Students Assemble Their Own Spatial 3-dimensional Models.

The perfect hand-saving tool for inserting glass tubing into stoppers!

Explore dendrochronology.

Ideal for handling small amounts of material in the lab and field.

Economy blue hand vac pump for experiments in air pressure, vacuum filtration, and leak checks.