9 Physical Science Matter and It's Properties

WHAT IS MATTER? Hi! I'm MATTER. Everything in the world is made of me!

物质是什么？嗨！我事。 世界上的一切都是我造的！

The ground under your feet is made of matter. The water in a river is made of matter. The clouds above you are made of matter. The stars in the sky are made of matter. Even you are made of matter. Matter is anything that has mass and volume.

你脚下的土地是由物质构成的。 河里的水是由物质构成的。 你头顶上的云是由物质构成的。 天上的星星是由物质构成的。 甚至你也是由物质构成的。 物质是任何有质量和体积的东西。

MEASURING MATTER Mass is like weight. Mass measures the amount of matter in an object. A boulder has a lot of mass. A grain of sand has little mass. Volume measures the amount of space an object takes up.

测量物质质量就像测量重量。 质量衡量的是物体中物质的总量。 巨石的质量很大。 一粒沙子的质量很小。 体积衡量的是物体所占空间的大小。

For example, take a bowling ball and a balloon. The bowling ball has more mass than the balloon. But they both take up about the same space. They have similar volume. How can this be? The bowling ball packs more mass into the same amount of space. This is called density. Density measures how much matter is in a certain space. The bowling ball is more dense than the balloon.

例如，拿一个保龄球和一个气球。 保龄球的质量比气球大。 但它们占用的空间差不多。 它们有相似的体积。这怎么可能呢？ 保龄球在同样大小的空间里容纳了更多的质量。 这叫做密度。密度衡量的是一定空间中有多少物质。 保龄球的密度比气球大。

PROPERTIES OF MATTER Mass, volume, and density are properties of matter. Properties of matter can be used to describe objects.

物质的性质质量、体积和密度是物质的性质。 物质的性质可以用来描述物体。