The components on Sandwich's circuit board are permanently soldered together. You'll learn about that later. But what do you do if you want to make a quick connection for a simple experiment? No, don't use electrical tape. It's too loose and sticky!
This chapter covers a simple method for making a few temporary connections. It also describes a multimeter test that you can perform to check if an electrical connection has been made.
Alligator clips have spring-closing "mouths" that grip parts (see Figure 8-1). Squeezing the center of the clip causes the mouth to open and release whatever it's holding. When you let go of the clip, the mouth closes and can hold onto things.
Figure 8.1. Alligator ...