WaterSafe* Pesticide Test, one-step test kit detects most common pesticides used in the U.S, To check harmful levels of Atrazine & Simazine,EPA Standards, Results in 10 minutesNo Mixing or Measuring, Contents: Pesticide Test Strip, Pesticide Test Vile, Pipette
Contents include 8-4 Derf Needle Holder, 5-300 Iris Scissors, 17-305X #5 Swiss Micro Forceps,18-948 McPherson Iris Forceps,18-1625 Mc Pherson-Vanna Scissors, 18-34 Plain Wire Speculum, 10-2-ST Probe all are contained in a 4-6835 cassette and mat.
Spiral of Theodorus Kit is to explore triangular relations by studying right triangles and by building the Spiral of Theodorus. Contains 18 wooden triangles, labels, pen and instruction guide. Hands-on activities aid in the conceptualization of abstract mathematical ideas
These mulit-parameter test strips test for five water quality measurements on 1 strip: Free Chlorine, Total Chlorine, Total Hardness, Total Alkalinity, and pH (6.2 - 8.4). 50 test strips.