"activities&amp"

Measure the intensity of light in the darkest of classrooms to brightest school yards with the Ward's Single Probes Light Sensor.

Wire cutter and stripper for classroom electronics and circuit work.

Power your creation with wind.

Demonstrate force, gravity, and energy in a way that's safe, hands-on and fun with the Ward's Single Probes Force Sensor.

One of the most versatile sensors for a variety of grade levels and teaching topics, the Ward's Single Probes Temperature Sensor makes it easy for students to collect valuable thermal data to supplement a wide variety of experiments.

Obsidian is hard black colored, volcanic glass.

Massive sedimentary gypsum with a moh's hardness 2..

Gray metamorphosed shale showing "slaty cleavage".

Breccia is a sedimentary rock made up of angular rock fragments.

Conglomerate is a sedimentary rock made up rounded quartz pebbles.

Gray to white metamorphosed carbonate rock.

Metamorphosed rock showing foliation and rich in hornblende.

Selenite is a Clear gypsum mineral with a moh's hardness of 2.

A textbook example of pure crystalline carbon which is extermely soft.

Massive white quartz with a moh's hardness 7.

Calcite is a translucent calcium carbonate mineral, mohs hardness 3.