What makes thunder and lightning? – Weather science
A bolt of lightning in the sky Hot air and cold air are constantly moving around the Earth, as the hot air rises and the cold air sinks - that's what [...]
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08, 2017
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08, 2017
Sound and pitch – Vibrations – Physics
Guitars can make sound of different pitches by using strings of different thicknesses When two things hit against each other, they set up a vibration that reaches your ear as a sound. [...]
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08, 2017
What makes sound? Simple physics
Playing a French horn makes sounds because you blow into it and that moves the air Like light, sound travels through the air in waves, but unlike light, sound is not [...]
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08, 2017
Shoebox guitar project – Sound – Physics
You can make a guitar out of a shoebox and rubber bands Begin by making some loud noises, like hitting a drum and clapping your hands. Can you feel the [...]
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08, 2017
Building a radio – a physics project
The graphite inside your pencil There's nothing magic about a radio. You can build your own radio out of plain ordinary things you can get at the store. Here's how. [...]
