Lead Free Solder with Easy Pen Dispenser, Cheap solder ruins irons, destroys projects and makes smoke billow from our ears, affordable, flows and melts beautifully, best dispenser, saves a lot of solder, No longer break off sections of solder
Lead Free Solder with Easy Pen Dispenser, Single, Cheap solder ruins irons, destroys projects and makes smoke billow from our ears, affordable, flows melts beautifully, best dispenser, saves a lot of solder, No longer break off sections
Make an Ocean Kit, This project allows students to model four ocean ecology scenarios as they investigate the effect of farm and industrial waste on marine life. Brine shrimp populations, water pH and water density, water treatment, and recovery, Grades: 4 - 6