"physics kits"

Illustrate the Chemical Variety in Soil

Monitors Hazardous Radon Levels

An Ideal Alternative to Liquid pH Indicators

Perform qualitative soil tests without the use of chemical reagents and test tubes.

Safe, easy, economical test for three factors.

Accurate pH Testing

Tests for Nine Essential Minor Elements

The individually packaged test factors in this outfit allow several groups to work simultaneously.

Soil Feeds Us And Sustains Us.

Includes Colorimeter, TDS, and pH Meters

Rare Test for Economical Price