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Topics > Physics > Electricity

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How to make your own telegraph machine.
You can make your own telegraph for sending secret messages to a friend. This project may require a trip to the store, some patience, and maybe a bit of help, but it's well worth it. After connecting all your wires and buzzers, you'll be able to “talk by lightning” (as telegraphy was once called).

Difficulty: Elementary school

Making lightning in a pan!
Lightning is beautiful, dangerous, and mysterious. The same brilliant flashes that inspire poetry and paintings can cause city-wide power outages and raging forest fires. Try this easy experiment to make your own miniature version of a lightning bolt.

Difficulty: Middle school

What materials block radio waves most effectively?
The purpose of this experiment was to find out which materials block radio waves and thus cause the most interference for remote control devices. The information gained from this experiment will help if someone is using remote control robotics or devices. It may be useful for scientific reasons, remote exploration as well as recreation. This experiment will benefit all those by determining which m

Difficulty: Elementary school

What the factors that affect the strength of an electromagnet?
Perform various experiments to determine the factors that affect the strength of an electromagnet. For example, you can vary the number of coils of wire around the core, or vary the material of the core.

Difficulty: High school

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Kits for your science fair projects Science fair book Science kit search tool Bigpedia - online encyclopedia

Science kits, science lessons, science toys, maths toys, hobby kits, science games and books - these are some of many products that can help give your kid an edge in their science fair projects, and develop a tremendous interest in the study of science. When shopping for a science kit or other supplies, make sure that you carefully review the features and quality of the products. Compare prices by going to several online stores. Read product reviews online or refer to magazines.