"WardsSci000478"

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.

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

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

This coloful mix of naturally colored polished stones are available in a variety of tumbled sizes. 1 lb. package.

For Use With Solar Cell.

Multifunction Capability in One Affordable Instrument

Introductory Planetarium is a simple model for hands-on demonstrations.