Ignite curiosity with these 8 hands-on STEM Challenge Cards that guide students through building different types of electrical circuits—series, parallel, lemon battery, graphite, and more. Perfect for STEM centers, science stations, or tech-infused lessons. What’s Included8 circuit-building challenge cards featuring:Simple CircuitSeries CircuitParallel CircuitLemon Battery CircuitPaper CircuitGraphite CircuitConductivity TesterMeasure ElectricityEach card includes a supply list, diagram, and s