Iron oxide is actually heavier than iron, making the resulting product heavier than the original steel wool. This reaction of iron and oxygen, also, creates a new substance, iron oxide (FeO2). This reaction creates the spark that we see and the release of heat that heats up the next iron molecules, thus causing chain reactions through the steel wool. The electrical current heats up the wire (700 degrees) and this heat causes the iron to react with the oxygen surrounding the steel wool. When both battery terminals touch the steel wool, the electrons from the battery move rapidly through the steel wool and make a complete circuit. These iron threads have lots of surface area surrounded by pockets of oxygen. Steel wool is made mostly of iron (about 98%) and melts at 2795 oF (1535 oC). Touch the ends of the battery to the steel wool. Duracell 9V batteries are made with the same quality youve come to. Place the steel wool in the baking pan.Ĥ. Duracell 9V batteries are ideal as smoke alarm batteries or as ham radio batteries. Work in an area that is clean, dry, and grease-free.Ģ.Pull the steel wool apart into thin strips and then form a loose ball.ģ.This should not be done near an open fire or flammable liquids.Before beginning, take the following safety precautions:.– Baking pan (We used a disposable aluminum pan) Procedure Related post: Electronics Lessons For Kids Materials It only requires 3 materials and some adult supervision. This steel wool 9-volt battery experiment is a fun, easy way for middle and high school students to learn about electricity, physics, and chemistry. Related post: Make An Electroscope The Steel Wool 9 Volt Battery Experiment In fact, we’ve done this experiment about 10 times in the last week. So when I broke out this steel wool 9-volt battery experiment, my children understood what was happening, but couldn’t quite believe their eyes. We studied physics and electricity a bit last school year with Electricity and Magnetism, by Colleen Kessler from, and Snap Circuits.
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