科研之友
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摘要
<正>同学们在自然科学课上已经学习了物质以及熔化、凝结等概念。那么该怎么用英语来表达这些概念呢?Q:What is matter?A:Matter is anything that takes up space.You are matter.This book is matter.Even theair you breathe is matter.All of these things take up space.Q:What is mass?A:Mass is a measure of the amount of matter in an object.A brick and a sponge mighthave the same size and shape.However,the mass of the brick is greater than the mass of thesponge.That is because the brick contains more matter than the sponge.
