Page 24 - Curriculum Visions Dynamic Book

(Left) Water will flow and settle to fill the bottom of a container no matter what its shape.
(Below) Water can occur as three phases – gas, liquid, and solid.
3: Physical properties of liquid water
Liquids move easily. So if you get a glass of water and tilt it, the liquid will first change shape and then pour from the glass. Notice that the water has not changed its volume, just its shape. Notice, too, that the upper surface of the water is flat – all of the change in shape occurs where the water touches the glass.
Once you pour the water from a glass into, say, a dish, the water then takes up the shape of the dish. While it is pouring, the liquid tries to hold together. However, if air resistance causes the water to break up into droplets, as soon as each droplet gets to the dish, it will immediately join with the others to form a whole again.
Water behaves as though it were a collection of tiny slippery balls that could move freely, but that, at the same time, are held together by a force. In this case the tiny balls are called molecules. This is very
Gas
Solid Liquid
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