Water
Water i very important for living thing. Without water there can be no life on earth. All animal and plant need water. Man alo need water.
Water i found atmoteverywhere. Even in the driet part of the world there i ome water in the air.
A we all have found out, water may be a olid, or a liquid or a ga.When it ia olid, it may be a hard a brick, When iti a liquid, you can pour it out of a container. When it i a ga, you cannot ee or feel it.
Although about 70 percent of the earth' urface i covered with water,there are many place in the world till running out of water. So we hould make good ue of water on earth.
水
水对生物很重要，没有水，地球上就没有生命。所有的动植物都需要水。人类也需要水。
水几乎无处不在。即使在世界上最干燥的地方，空气中也有水。
水，正如你所了解的，有固态、液态和气态。当它是固态时，它可以像砖一样硬；当它是液态时，你可以将它从容器中倒出；当它是气态时，你看不见或感觉不到它。
虽然地球表面70％是水覆盖着，世界上仍有许多地方缺水。所以我们要好好利用地球上的水。