生活中处处有化学。铁锅是厨房中常用的炊具，请用所学的化学知识

生活中处处有化学。铁锅是厨房中常用的炊具，请用所学的化学知识填空。

①铁锅作炊具主要是利用铁的性。

②铁锅手柄上使用的塑料应具有性（填“热塑”或“热固”）。

③使用铁锅有利于人体健康，主要是因为。

④请你说出一个厨房中防止铁锅生锈的方法。

答案

导热，热固，补充人体所需铁元素，保持表面干燥洁净

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