Water is life Water, is a human Shengmingzhiquan, the Earth is the source of life, all life in the universe is indispensable to a substance. 1 do not know how the knowledge on water, too much can not keep up with culture. Water should be valuable knowledge of every person on earth to know, I do not know the water is not knowledge of the fate also. Because of drinking unsafe water or contaminated water will be life-threatening, so we should be the first time to understand water knowledge. If you do not see the naked eye drinking water is good or bad, I suggest that you use the pH value of test-card. First of all, to one of a paper placed in water, the Baptist two minutes, you will find in the water the color changes, it is the paper work, according to the colour of water to control the pH value color cards, will be able to know that water is acidic, Is alkaline, or a weak alkaline. On, the water is usually good in terms of pH greater than was weakly basic, general and bad water pH value of less than acid. We would also like to have better water conservation, but not too much in savings, not to just 10 million metres of water used Xiwan wash your face, just Xiwan feet of water pouring out dishes. Healthy water should be reasonable and rational use of every drop of water is the real water conservation. You have before them a bottle of drinking water, if you want to drink plenty of water is, you have stepped forward to see signs have QS, has rich natural balance of minerals, posted on the bottle, what is the pH value, water From where. These are checked, you can made a Tongyin. Why do we drink? Weak alkaline water, it is because we need it the body‘s blood, if drinking acidic water will result in acidification, acidification is the source of diseases, acidification, the disease will be walked to you! Therefore, we must drink weak alkaline water, as we will be a long and healthy life. We are now usually drink the water are purified water, the general water, and water was acidic, we should drink more water and some drinking natural mineral water, which are rich in various natural mineral water, suitable for our long-term Drinking. Well, wrote such a long time, I also tired, Shengelanyao to, and wrote here on the. Finally, I hope that we can better understanding of water, so as to more healthy, happy life of learning. School: Yiwu City Experimental Primary School classes: 6 (9) classes Name: Zhu Chen Yang Instructor: Zhang Yunying