Biodiversity
Brain
Genetics
Marine BiOLogy
MicrobiOLogy
PaleontOLogy
ZoOLogy
AnthropOLogy
ArchaeOLogy
Astronomy
Climate Change
Earth
Physics
Water
solid
liquid
gas
Correct!
Clouds, fog, and mist are clusters of tiny liquid water droplets called "drizzle drops." Each drop is smaller than a tenth the width of a human hair.
Definition: an odorless, tasteless substance that is essential for all plant and animal life
Chemical formula: H2O (two hydrogen atoms bonded with a single oxygen atom)
States: solid (ice), liquid (water droplets), and gas (water vapor)
Climate: Ocean currents and sea ice play a key role in regulating Earth's climate.
Cool fact: Water is found in all living things. Two-thirds of the human body is made of water.
All water on Earth is linked in a water cycle. As it moves between the atmosphere, land, and sea, it changes state. As a cloud, water is a:
The oceans hold over 97% of Earth's water. The remaining 3% is fresh water. Most of Earth's fresh water is found:
underground
in lakes, rivers, and swamps
in glaciers and ice caps
Correct!
About 69% is frozen in glaciers and ice caps, 30% is groundwater, and only 0.3% is in rivers, swamps, and lakes.
All animals drink water.
Fact
OR
Fiction
?
Fiction
All living things need water to survive, but not all species drink it. In fact, some animals like kangaroo rats get all the water they need from the food they eat.
The more it rains and snows, the more water Earth has.
Fact
OR
Fiction
?
Fiction
The total amount of water on Earth never changes. The same amount of water might change state (between liquid, solid, and gas), or change location (from the ground to the air).
“
Ensuring that everyone on Earth has enough fresh water will be one of the major issues facing us this century.
„
Eleanor Sterling,
Conservation Biologist
“
To tackle the problem of water shortages, the focus should be on conservation—how to live with less water.
„
Eleanor Sterling,
Conservation Biologist