Soldering Iron-High Quality with Ceramic Element, sleeved tip and rubber grip. It's affordable, built tough, powerful, and made for lead-free solder, find it in countless maker spaces, classrooms and home workshops, Voltage: 110V, 30W
The Acid rain test kit is great to use in the classroom or for science fairprojects to determine if you have acid rain in your area, Kit Includes: 15ml Low Range pH Indicator, 6 Test tubes, Color Chart
Square Friction Cube With Hook, 4 Surfaces, 2 Inch, Provides Four Surfaces For Exploration Into The Force Of Friction. Each Side Of The 2in Cube Provides A Surface (Wood, Paper, Vinyl, Sandpaper) With A Different Coefficient Of Friction