Science Fair Topic Ideas in Electricity & Electronics

Science Fair Topic Ideas in Electricity & Electronics

Transmission lines in the electrical grid.
Transmission lines in the electrical grid. Scott Olson/Getty Images

Electricity and electronics is a lot of fun to experiment with. After all, when else can your child give people static shocks and get away with it or try to see if lemons make a light bulb light up? Since there's some risk of injury working with electricity, parents should be sure to supervise any such projects closely and make sure budding scientists are taking the proper safety precautions.

Static Electricity Science Fair Ideas

Hand holding red plastic comb with pink and green paper pieces stuck to by it static electricity
Mike Dunning / Getty Images

Static electricity is something everyone has come up against. As a science fair project idea in electronics and electricity, your child has many options. Some possibilities: Explain what causes a static shock or prove that a rubbing a balloon on your head can replicate that shock.

Understanding and demonstrating the principles of static electricity can be as simple as your child combing his hair to "charge" the comb. Apply the charged comb to a neutral (non-charged) item and see what happens.

Circuits and Circuit Board Science Projects

Soldering a circuit board.
Soldering a circuit board. Monty Rakusen/Getty Images

Whether he’s explaining the basics of electricity, discovering what a simple circuit is, building his own simple circuit or exploring different circuits using a Snap Circuits kit, there are plenty of possibilities for exploration in this area. The really motivated future electrician could get the parts to build his own circuit board and demonstrate how circuits conduct electricity.

Electromagnet Science Fair Experiments

Electromagnetic coils in a factory.
Electromagnetic coils in a factory. Monty Rakusen/Getty Images

Electromagnets are a great science fair topic. Kids love to make non-magnetic objects become magnetic. In researching the concept, your child could do a presentation on Professor Hans Christian Oersted. He could recreate the professor's discovery of electromagnetic fields or even build his own electromagnet, with simple ingredients: a battery, a nail, and some conductive wire. This is one of the easier areas of do-it-yourself projects that kids can really get into.

Conductivity Science Fair Projects

An electrical circuit with lemons.
An electrical circuit with lemons. TEK IMAGE/Getty Images

The interesting thing about electricity and electronics is that none of the electronics would work if the electricity wasn’t able to flow to power them. But what conducts electricity? This question is a great one for your child to create an experiment to answer.

A very fun way to demonstrate conductivity involves lemons. Yes, the citrus fruit! Since acidic fruits make ions or charged particles, they can act as batteries. An experiment testing which fruit best conducts electricity is a perennial favorite (hint: make sure your student includes a lemon in his supplies).

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