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Water Facts: Lesson for Kids

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  • 0:04 Water Is Life
  • 1:05 What Is Water Made Of?
  • 2:10 Cool Water Facts
  • 3:17 Lesson Summary
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Lesson Transcript
Instructor: Jeremy Cook

I have been teaching elementary school for 16 years. I have extensive experience in lesson and curriculum development and educational technology.

We certainly can't live without it. None of us can. Water is the most basic part of life, and we all need it to survive. This lesson will teach you everything you need to know about water.

Water Is Life

There is very little more important to life than water. Not even candy, chocolate, or cookies are more important, no matter how good those things are.

How important is water? Well, over 70% of the entire planet is covered in water. It's why we're called the 'blue planet.' Most scientists also agree that life began in Earth's oceans, so water played a major role in our existence.

Water comes in two very basic categories: fresh water and salt water. Fresh water is the water that most life forms, including plants, need for survival. Rain, rivers, lakes, and streams all carry this life-giving liquid.

Salt water is the water found in oceans and seas. Unlike fresh water, it has an added ingredient: salt. While there are many fish and marine mammals that live in and off salt water, for most animals, it would do more harm than good to drink it.

What Is Water Made Of?

This is a tricky question actually. Water is made out of water. Okay, it's a bit more complicated than that.

Water is made of two basic elements called hydrogen and oxygen. Each tiny molecule of water is made of two atoms of hydrogen and one atom of oxygen. The formula is called H2O. I'm sure you've probably heard people refer to water as H2O, so now you know why.

Have you ever been woken up in the morning by the wonderful smell of boiling water? I would seriously hope not because water has no smell and no taste. Any kind of smell or taste that you might notice is because of things that have gotten into water, like salt or iron.

Water can be found in one of three states. At temperatures between 32 degrees and 212 degrees, it is in liquid form. Water below 32 degrees will freeze and become solid, which is known as ice. Finally, when water reaches 212 degrees, it comes to a boil and turns into steam. This is water in the form of a gas.

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