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.
Build a hand that realistically moves its fingers using shape memory allow technology!
Watch this laser pointer emit a cool purple beam!
This is a deluxe soldering station that can handle any kind of application!
Is it a demonstration of a scientific law or a work of art?
Build your own windmill generator kit by recycling a plastic bottle!
Comprehensive collection of 30 fossils.