铜球的热胀冷缩
适用年级 1-6 年级
key word：Digital inquiry experiment system
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Product Description
原理
固体具有热胀冷缩的性质。铜球受热后体积膨胀，不能够再通过铜环，待冷却后又可以通过铜环。
目的
通过对铜环加热及冷却探究固体热胀冷缩的性质。
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