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 为了比较水和沙子吸热本领的大小,小明做了如图所示的实验:在2个相同的烧杯中分别装有质量、初温都相同的水和沙子,用两个相同的酒精灯对其加热,实验数据记录如下表:

(1)在此实验中,用加热时间的长短来表示水和沙子____ .
(2)在实验中,应不停地用搅拌棒搅动水和沙子,其目的是:____ .
(3)分析表中的实验数据可知;质量相同的水和沙子,升高相同的温度,水吸收的热量____ (选填”大于”或”小于”)沙子吸收的热量.
(4)可以推想,如果给质量相同的水和沙子加热相同的时间,则____ (选填”沙子”或”水”)升高的温度会更高些.
(5)实验中,有些同学发现:刚开始加热时,情况与(4)的结论不符,你认为可能的原因是____ .

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吸热的多少,受热均匀,大于,沙子,水导热能力强

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