Three Ways to Order Your Science Supplies

Online - Pay by credit card, check or your account.

By Phone - Call us at 800.628.7748
Mon. - Thurs. 7:30 - 4:00 pm, Fri. 7:30 - 3:00 pm


By Fax - Fax your order with our
pdf form.

Npk™ Soil Test Kit


Specifically designed to meet the needs of the GLOBE Program. This kit is safe, fun and can easily ship anywhere.

  • 50 tests each for nitrogen, phosphorus, and potassium 
  • uses non-hazardous TesTabs®
  • all necessary apparatus
  • simple, diagrammed instructions
  • laminated color chart.

 Grades 5 and up.

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