Building Circuits is an activity from the website National Geographic aimed towards grades four to eight, ages nine through fourteen. Building circuits is an activity that is explained in great detail for teachers to do in their classroom. There are different tabs on the website for the teacher to look at such as directions, objectives, preparation, and background and vocabulary. The activity is very detailed to help teachers understand and be able to teach their students on a topic they might find difficult. In this activity students will be experimenting with batteries, wires, bulbs, and switches to make series and parallel circuits. The activity should only take 30 minutes.