Have you ever wondered where that water in the drinking fountain actually comes from? To know the answer to this question you have learn about the water cycle. Read the explanation below and then check out the cool links to fun activities and games that can help you learn even more!
THE WATER CYCLE
Did you know that the water you drank this morning might have been the same water a dinosaur drank millions of years ago? Or it may have been the same water that supported Columbus' ships on the sea. There is the same amount of water on Earth today as there has always been. The water keeps moving around in an endless cycle called the water cycle.
Water itself is the only substance that exists in liquid, gas and solid form - the keys to the water cycle. Here's how the cycle works:
Water evaporates from oceans, rivers and lakes (water in its liquid form) and rises into the atmosphere (water in its gas form) where it condenses to form clouds. Precipitation then falls to the earth in the form of rain (water in its liquid) or snow (water in its solid form) where it flows into oceans, rivers and lakes and the process begins again.