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
Soap Power Kit, Includes: 6 x 5ml Dropper Bottle Liquid Dish Soap, 2 Foam Trays, 6 Plastic Trays, 6 Pepper Packets, Demonstrate the concept of surface tension to the classroom using soap as a power source, For Grades 2-5