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粉末,又叫粉或末,有時比喻為塵,講物質好細固體,固體整碎到好細好細,細細一堆。乾身,搖佢郁佢或者會流動。粉末大細在粒之下,粉末經已好難整到更細。粒通常唔會結成一嚿,但粉末係易啲會。
粉末密度可,可大可小。壓佢就密啲實啲,相反就鬆啲散啲。會結成一嚿,皆因粉同粉之間,有范德華力拉埋。若果係粒呢,都有范德華力,不過本身范德華力太弱,粒本身嘅重量同慣性都遠大於佢,所以唔易結成一嚿。
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