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Yep. Pure water is an extremely bad conductor of electricity, it has very few ions. Water with an electrolyte (like NaCl) is a much better conductor of electricity; as the ions can migrate. Why did the salt make the water more conductive to electricity? o Ask the students: “Why didRead More →

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In naturally occurring materials, Diamond has highest thermal conductivity. What is the lowest thermal conductivity? A new generation of insulation materials, airgel. It is currently recognized as the lowest thermal conductivity of solid materials. It has applied for the world’s lightest solid material in Guinness Book of World Records. WhichRead More →