Observing matter
观测物质
All matter has properties.
所有物质都有属性。
A property is the way something looks, tastes, feels, sounds, or smells.
属性是指某物的外观、味道、感觉、声音或气味。
Size, shape, and colors are also properties.
大小、形状和颜色也是属性。
For example, a broom is hard, but a rabbit's fur is soft.
例如，扫帚是硬的，但兔子的毛是软的。
A piece of iron sinks to the bottom of water, but a leaf floats on the water.
一块铁沉入水底，但一片叶子漂浮在水面上。
An elephant is big, but an ant is very small.
大象很大，但蚂蚁很小。
Rocks are heavy, but a feather is light.
岩石很重，但羽毛很轻。
You can use tools to learn more about the properties.
您可以使用工具了解有关属性的更多信息。
You can use a hand lens to magnify, making a very tiny thing look big.
你可以用手动镜头放大，让一个非常小的东西看起来很大。
You can use a balance to tell the weight of an object.
你可以用天平来判断物体的重量。
Also, you can use a ruler to see how long a thing is.
此外，你可以用尺子看一个东西有多长。