-
The water you get from your faucet can come from two places - from the water in lakes or rivers (surface water), or from water that comes from wells (groundwater
-
Water is continually moving around, through, and above the Earth as water vapor, liquid water, and ice. In fact, water is continually changing its form. The Earth is pretty much a "closed system," like a terrarium
-
Where is Earth's water located and in what forms does it exist? You can see how water is distributed by viewing these bar chart
-
Ground-water aquifers One of our most valuable resources is the water beneath our feet - something you can't see and may not even know is there!
-
Earth's water is always in movement, and the water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth
-
A river is nothing more than surface water finding its way over land from a higher altitude to a lower altitude, all due to gravity. When rain falls on the land, it either seeps into the ground or becomes runoff, which flows downhill into rivers and lakes
-
What is a watershed? Easy, if you are standing on ground right now, just look down. You're standing, and everyone is standing, in a watershed.
-
the Earth is a watery place. About 70 percent of the Earth's surface is water-covered. But water also exists in the air as water vapor and in the ground as soil moisture and in aquifers.
-
he water cycle is a basic scientific concept that is taught even in elementary schools and is one of the first environmental concepts that children learn.
-
Almost 10 percent of the world's land mass is currently covered with glaciers, mostly in places like Greenland and Antarctica. Glaciers are important features in the hydrologic cycle and affect the volume, variability, and water quality of runoff in areas
-
Pure water is colorless, odorless, and tasteless.
-
Before the mid-1970s, it was thought that soil acted as a protective filter that stopped pesticides from reaching ground water. Studies have now shown that this is not the case. Pesticides can reach water-bearing aquifers below ground from applications on
-
ive Water A Hand, young people team up with educators, natural resource experts and committed community members to study water issues and take ACTION!
-
lesson plans and activities preschool through highschool
-
Our Special Topics section lets you explore water subjects that, well ... they just don't fit under any of our other Water Science topics.
-
Estuaries come in all shapes and sizes and are called many different names—bays, lagoons, harbors, inlets, or sounds.
-
Color Your Own Estuar
-
esturary links
-
Water for Kids These are sites with information about wate
-
Water exists in three states- solid, liquid, and gaseous.
-
The fourth state of matter is plasma. Plasma is an ionized gas, a gas into which sufficient energy is provided to free electrons from atoms or molecules and to allow both species, ions and electrons, to coexist. In effect a plasma is a cloud of protons, n
-
water molecules. Here's what one looks like:-picture of water molecule
-
Water vapor may condense to liquid water as it cools. This is what happe ned to the water vapor from your mouth as it touched the mirror. The mirror was cold and so the water turned back into water droplets. Condense is the opposite of evaporate.
-
This experiment is used to show that frozen water expands.
-
To see which makes a better cup of cocoa-hot water or cold water and to demonstrate spaces in water molecules.
-
hen you added detergent, the soap weakened the attraction the water molecules had for each other. This caused the surface film to disappear. Then the paper clip sank.
-
Since water molecules are attracted to each other so strongly, they formed small balls or drops which rolled over your oil coated hand. There is an invisible "skin" of surface tension around each drop.
-
This is a series of experiments about the properties of water and the effects of water pollution. This unit was designed for use in the fourth grade.