Here's what to do:

1. Screw the tiny bulb into the tiny bulb holder.
   
   
2. Attach one piece of wire to each of the screws on the bulb holder. Leave the other ends of the wires free.
   
   
3. Use the masking tape to attach the free ends of the wires to the battery–one wire to each end. (The nub at the top and the small dip at the bottom are called "terminals.")
   
   
4. Watch the bulb light up as you connect the last wire and complete the circuit.
   
   
5. Shout "Eureka!" very loudly.