Test students' ability to design and analyze simple DC circuits (single-loop and basic series/parallel), interpret circuit diagrams, and apply Ohm's law (V = I·R) to calculate unknown voltage, current, or resistance; include choosing resistor values to achieve a target current, predicting how adding/removing components changes behavior, and performing basic unit conversions. Medium difficulty for grades 6–8 with emphasis on applying formulas and interpreting results for real circuits.