States of Matter
Water is unique in that it is the only natural substance that is found in all three physical states—liquid, solid, and gas—at the temperatures normally found on Earth.
Words to Know
Water Cycle the cycle or processes by which water moves around the earth's oceans, atmosphere, and land involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation.
Water Vapor water in its vaporous form; a dispersion, in air, of molecules of water, especially as produced byevaporation at ambient temperatures rather than by boiling.
Evaporation the changing of a liquid into a gas, often under the influence of heat (as in the boiling of water).
Condensation the conversion of a vapor or a gas into a liquid; water that collects as droplets on a cold surface when humid air is in contact with it.
Precipitation Rain, snow, sleet, or hail that falls to the ground from the sky.
Atmosphere The gaseous envelope surrounding the earth; the air.
Solid a form of matter that can be held and keeps its own shape.
Liquid a form of matter that can flow or easily be poured; takes the shape of the container it is in.
Gas a form of matter that does not keep its shape; often spread out to take the shape of the container it is in.
Conservation prevention of injury, decay, waste, or loss (preservation)
Rehydration to replenish the body fluids of an individual.
The Water Project is dedicated to providing clean, safe water to people in the developing world who suffer needlessly without it.
This site was created by National Geographic and is filled with paragraphs categorized based on the different precipitations, for example, rain, hail, snow, and other precipitation.
This is an interactive website that can be used for a variety of age ranges, including young children. This website has several topics including the water cycle, basic facts about water, as well as water use and quality.
This website provides free information to children about the importance of water and why we should work hard to save and preserve it.