Water
All living things need water．Fishes live in water．We need water to drink and use．Animals and plants need water,too． There are two kinds of water—sea water and fresh water．Sea water is salty and we cannot drink it．We drink fresh water．
Water is an interesting thing．When we boil water,it will turn into steam ．If we put a piece of glass over the steam ,it will cool down and turn back into water drops．If we put some water into a freezer,it will freeze and turn into ice．But when we take out the ice and place it on a table for some time,it will melt and become water again．
If we drop a coin into a glass of water,it will sink to the bottom ．But when we put a match into it,the match will not sink．It will float on the surface．What happens when you swim Do you float or sink?
Water Pollution
Today,I read a piece of news in China Daily.It reports that water pollution exists not only in Haihe River but aIso in some other rivers,lakes and seas in our country.
Everyone agrees that water pollution is a serious problem today.Rivers,lakes and even oceans all over the world are bec0mingpolluted by garbage and dangerous chemicals.Oil and other chemicals can kill fish and make water unsafe for drinking polluted water is a hazard to everyone.
Now more and more people have realized how serious the problem is.Our government is doing its best to take measures to fight against pollution.We’ve done a good deal of work,but there’s still a long way to go.We must keep on fighting until we find ways to protect the environment from being polluted,and do away with pollution.We are sure that we’ll win the battle.Goodbye,water pollution!