This is such an easy lesson. A preschooler can understand it, but it would be valuable for even a college student. You appreciate short blogs, right? Here it is:
Make a tray of ice cubes. Put density blocks on top. Within seconds, you can feel that the metal ones got cold. These ones “conducted” cold and the wood and plastic ones did not.
You can ask the student to then remove the very coldest block, then the next coldest, etc, showing gradation. You can feel the block after several minutes of being removed and feel the metal ones are still cold. When placed on the ice, the metal blocks melt the ice instantly.
This is basically the perfect lesson. It’s hand-on; it’s easy; and highly relevant to most people’s lives. Vut more do you vant?
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