Looking for a great idea for a science project? In this video series you'll learn how to build a battery-run light board which can test the electrical conductivity of various objects. You can find these supplies easily at your local hardware store.
Make a light board - Part 2 of 6
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Make a light board - Part 3 of 6
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Make a light board - Part 4 of 6
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Make a light board - Part 5 of 6
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Make a light board - Part 6 of 6
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Just updated your iPhone to iOS 18? You'll find a ton of hot new features for some of your most-used Apple apps. Dive in and see for yourself:
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