Water is a pretty remarkable substance. It covers more than two -thirds of the earth's surface and no life on earth could survive without it. Most of the experiments here will help you to investigate the amazing characteristic of liquid water. You can take a close look at water's stretchy skin, discover why heavy ships float in water , and find out how come substances disappear when they are mixed with water. you can also find out how liquid water is used to turn the machinery that produces the electricity in hydroelectric power stations.
But liquid water is only one of the three forms in which water can exist. If water is cooled to 32 degrees F, it freezes to become a solid called ice. If it is heated to 212 deg F it boils and disappears into the air as a gas called water vapor.
As you come to understand the different characteristics of water you will be able to answer the questions on these two pages and explain how water influences the way in which things happen in the world around you,.
| Disappearing Water | Drying? Which is faster? | Make your own Refrigerator | Stay Cool Babe! |
| Water From Air | On the Level | A Stretchy Skin | Floating and Sinking |
| Water Mixtures | Water All Around | Water Quiz |