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Water Systems

Chapter One

QuestionAnswer
atmosphere The environment surrounding the planet Earth
hydrosphere Everywhere that there is water on Earth
lithosphere The solid rock of Earth's crust
crevasse A deep crack in a glacier
Density The amount of mass of a substance in a certain amount of volume
drainage basin The area of land that drains into a body of water
freezing point The temperature at which a liquid changes into a solid
ground water Water found below the Earth's surface.
run-off water that flows over the ground surface rather than soaking into the ground
Salinity The total amount of dissolved salts in a water sample.
Condensation The change of state from a gas to a liquid
Evaporation The change of a substance from a liquid to a gas
Precipitation Any form of water that falls from clouds and reaches Earth's surface.
In ice Where most of the world's fresh water is found
Fresh water is less dense Why does ocean water sink below fresh water when they mix?
A flatter slope of land What would help slow down run-off reaching a river?
11 000 How many years ago did the last ice age end?
Volcanoes and the Earth's crust The sources of salt in the ocean
-1.9 degrees Celsius The temperature that salt water freezes at
The sun The source of power for the water cycle
70% How much of the Earth is covered in water?
3% What percentage of water in the world is fresh water?
1% What percent of the world's water is liquid and fresh
Global warming What is the main cause of glaciers warming?
Created by: g8
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