This is a classic beginner's experiment that teaches the basics of circuits. You'll learn how to connect an LED to a power source with a resistor to limit the current.

In this experiment, you'll use a Light Dependent Resistor (LDR) to create a circuit that triggers an alarm when it detects darkness. This is a great introduction to sensors.

The 555 timer is a versatile integrated circuit that can be used in a variety of projects. In this experiment, you'll learn how to use it to create a simple astable multivibrator, which is a circuit that produces a continuous square wave.