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All you need is a black sharpie marker, an eye dropper, some water, a coffee filter and eyes. Take the sharpie marker and draw a dot about the size of a dime on the coffee filter. Next take the eye dropper and fill it with water. Then drop one drop of water in the center of the dot and you will be amazed on what colors make up black!

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For a color-changing science fair project, you can use materials such as thermochromic pigments, pH indicators, or photochromic compounds. These materials change color in response to temperature, acidity, or light exposure, making them great for demonstrating various scientific principles. Just be sure to follow safety guidelines when working with these substances.

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11mo ago
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Q: Science fair projcts material for color chaning?
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