SEARCHING THE SAND: You Will Need
Glass dish, sand, adhesive tape, saw, pen, modelling clay, magnets, scissors, cutting mat, breadboard and base, amplifier, NPN transistor, 32 SWG wire with thin insulation, insulated wire, 9V batteries, steel paperclips, buzzer, pliers, wire strippers.
Andy Crawford (c) Dorling Kindersley |
