century 21 technology/batteries
This article provides steps for making a rheostat, a small device that controls the voltage by a dial or knob. Great for science fairs!
Wondering how to split water. This article contains step-by-step instructions for completing this science fair project.
This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.
How does a flashlight work? Do this free science fair project and explore the mechanics of a flashlight. A great science project for elementary students.
How can fuses protect electric wires from overheating? In this free science fair project, you can explore and learn how fuses protect wires from heating up.
In this science fair project, you will use a model to demonstrate a series circuit and determine how to measure the voltage, current and resistance.
Which battery lasts the longest out of four different brands, Duracell, Energizer, Eveready and Rayovac? This article describes steps to answer this question.
What is a parallel circuit and how does it work? Do this free science fair project and explore electrical currents in a parallel circuit.
The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.
The purpose of this science fair project is to determine whether a thin wire or a thick wire more effectively energizes a light bulb connected to a battery.