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See how the electrical conductivity of water changes depending on what is dissolved in it.
Continue reading ‘Multimeter experiments with electricity and water’ »
The Digital Bits Science Labs are fun science experiments for young children. Kids, make sure you have an adult's permission before trying any of these science experiments.
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See how the electrical conductivity of water changes depending on what is dissolved in it.
Continue reading ‘Multimeter experiments with electricity and water’ »
A note of caution on this experiment: One of the gasses produced is chlorine. While this is safe on a small scale, you should not replicate on a large scale without safeguards. Thanks to Larry Robinson for this information - for detail, see his comment below this article.
Continue reading ‘Easy electrolysis - how to make your own hydrogen’ »
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A simple demonstation of “muscle memory” and the subconscious actions of our body.
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“Your Multimeter and You”: use a multimeter to measure electrical resistance of things, including yourself. Continue reading ‘Multimeter experiments and introduction’ »
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Possibly the simplest and cheapest kite in the world.
Continue reading ‘Learn about aerodynamics and make your own cheap, simple kites’ »
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Learn about friction - use a pencil to pick up thousands of grains of rice. (And no, this won’t take hundreds of years.)
Continue reading ‘Pick up thousands of rice grains with a pencil’ »
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A leaky bottle can teach how air pressure works, and how strong air pressure is - It can stop water from flowing!
Continue reading ‘Learn about air pressure from a leaky bottle’ »
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See what colors combine to form other colors. Make a CD spinner to improve the testing, giving you a color combiner that can be reused with any color you want.
Continue reading ‘Build a CD spinner and learn color combinations’ »
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A hovercraft works because of air pressure: it uses a motor to create a cushion of air. The hovercraft floats on this cushion, allowing it to move over land and water.
Continue reading ‘Build a balloon-powered mini-hovercraft’ »
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Surface tension is a special attribute of water. When water is exposed to air, it forms a thin “skin” that keeps the water together. This is how some bugs skim over a water’s surface: surface tension keeps them from sinking into the water.
Continue reading ‘How to join and separate two streams of water - surface tension in action’ »