FEATURED ACTIVITIES
Exploring Circuits
Activity
Learners build physical circuits and use a computer simulation to explore how energy flows, compare series and parallel circuits, and examine how voltage and current affect circuit behavior.
30-45 minutes
Batteries (AA or D-cell), E10 mini lightbulbs, insulated wires
individual, small groups, pairs, camp
Transistors
Activity
Learners build a series of circuits to explore how resistors, switches, sensors, and transistors control light. The activities progress from basic circuits to a smart light-sensitive circuit and conclude with a blinking light circuit that demonstrates how transistors can create timed patterns.
30+ minutes
Breadboard, 3V battery, LED, tactile button, photoresistor (LDR), NPN transistors (2N2222), resistor 100Ω, resistor 1KΩ, resistor 10KΩ, resistor 100KΩ, capacitor 100μF, capacitor 10μF, wires
camp, small groups
