Use this handy and versatile water quality testing device to monitor pH levels, temperature in Celsius or Farenheit, or electrical conductivity, which allows you to gauge the adjustment of nutrients, salts, and other elements for healthy plant growth. Excellent for hydroponic gardening or experiments in the classroom. LCD screen gives precise measurements to the hundreth decimal point.
Check out this high-quality gyroscope!
Build over 60 projects with this deluxe version of the Snap Rover kit!
See the constellations visible in the Northern Hemisphere on this watch!
Learn all about the science of light, optics and visual perception with this wonderful kit!
Dig deeper, and discover the fascinating crystal structures of minerals and rocks with this great kit!
This kit focuses on teaching children about electricity and how electronic devices work!