 | 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).
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| | 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 |
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| | | Difficulty: High school |
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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.
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