Students will explore the basics of dc circuits analyzing the light from light bulbs when connected in series and parallel circuits. Ohm's Law and the equation for power dissipated by a circuit will be the primary equations used. Using these two equations circuits connected in series and parallel will be explored. Students will measure and see the effect of power dissipation from the light bulbs. Kirchhoff's voltage law is used to show how two resistor elements add in series. While Kirchhoff's current law is used to explain how two resistor elements add when in parallel. Students will also explain how electrical engineers apply this knowledge to solve problems. Power dissipation is particularly important with the introduction of led bulbs and claim of energy efficiency and understanding how power dissipation is calculated helps when evaluating these types of claims.