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Article: 3 states of water.
- Article from:
- Science Weekly
- Article date:
- December 12, 2006
CopyrightCOPYRIGHT 2006 Science Weekly, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Chemical Properties of Water
When water boils at 100 degrees Celsius (Cel-si-us), it turns from a liquid to vapor (va-por). When water gets very cold (0 degrees Celsius), the water turns into a solid (sol-id), or ice.
The water cycle, known also as the hydrologic (hy-dro-log-ic) cycle, is the continuous (con-tin-u-ous) movement of water from the oceans to the sky and back to the oceans. The water cycle begins when the Sun heats Earth's surface water. This heating causes the water to evaporate (e-vap-o-rate) and rise into the sky as a vapor. When the vapor reaches cold air, it turns back into water as tiny droplets, forming clouds. This process is called ...