"Geology and Earth Science Clearance"

Epidote (Single crystal), Ward's

This combination unit indicates the inside and outside temperatures and the indoor humidity.

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

Rubber stamp the real weather on a given day or what the students would like the weather to be. With this set of 12 different high quality stamps, learn about the changing weather patterns.

Compact, 2-in-1 field tool and weather instrument.

Learn the Cycles of the Atmosphere’s Most Abundant Gas

Feldspar group; blue-green, microcline, triclinic, ³/₄". Colorado.

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

A versatile marking tool.

This replacement high-concentration diamond wheel is six inches in diameter.