Start adding the following substances to one of the glasses of water, stirring as you add each substance. When you have finished, ask students which one of the glasses of water they would rather drink. Ask them why it is important to have clean water. The water that we can drink comes from lakes, streams, rivers and wells. If we do not conserve our water resources and keep them clean, we will harm our health.
Dirty water can spread disease to humans and animals.
Discuss ways that the community can keep water clean and safe. Ways Communities Can Keep Water Clean and Safe Discuss some of the things that communities can do to keep the water clean and safe to drink. They can purify water in purification plans before it reaches people's homes. Even though water may look clean, it may have harmful bacteria or microbes in it that could cause harm to your heal. A water purification plant can remove microbes that cause disease.