Did you know that dinosaurs might have drunk the same water we drink today? |
Living on the earth is like living in a terrarium. All the water on the earth has always been here. |
The water that we have never goes away and new water is never created. You might say the water we use is recycled! |
Water changes form as it moves through the water cycle. Scientists have learned that the water cycle (They call it the Hydrological Cycle.) helps to purify the water. |
When the soil and air are polluted it is harder for the water to get clean. |
Sometimes water takes on a liquid form. That's called precipitation. Rainwater falls to the earth and flows down to the rivers and streams. |
Sometimes when the air is very cold the rainwater becomes a solid and turns into ice and snow. |
Water accumulates in lakes and oceans and even in underground aquifers. |
As the sun shines on the water and warms it, a tiny invisible gas is formed. This part of the cycle is called evaporation. |
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