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Amazing Water
Hydrosphere Terms
37
Science
8th Grade
01/14/2011

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Term
Absorbency
Definition
The ability to take in a material
Term
Adhesion
Definition
The tendency of water to stick to other substances
Term
Aquifer
Definition
An underground layer of rock or soil that holds water
Term
Artesian Well
Definition
A well in which water rises because of pressure within aquifer
Term
Buoyancy
Definition
The ability of a fluid to exert an upward force on an object that is immersed in the fluid
Term
Capillary Action
Definition
The process that moves water through a narrow porous space
Term
Cohesion
Definition
The attractive force between water molecules
Term
Condensation
Definition
The process of warm air cooling as it rises and releasing moisture in the form of a liquid
Term
Density
Definition
The measure of mass of a substance per unit volume
Term
Drought
Definition
A long period of scarce rainfall
Term
Evaporation
Definition
The process by which a liquid is changed into a vapor
Term
Fresh water
Definition
Water on Earth that is used for human consumption
Term
Glaciers
Definition
A large mass of moving ice and snow on land
Term
Groundwater
Definition
Water located below Earth’s surface
Term
Human Consumption
Definition
The ability for humans to eat
Term
Hydrology
Definition
The study of water
Term
Hydrosphere
Definition
The portion of Earth that contains water
Term
Icebergs
Definition
A large floating mass of ice detached from a glacier
Term
Icecaps
Definition
A glacier forming on an extensive area of relatively level land and flowing outward from its center
Term
Impermeable
Definition
Does not allow water to move through
Term
Infiltration
Definition
Water that seeps into rocks and between particles of soil
Term
Insoluble
Definition
Does not dissolve
Term
Permeable
Definition
Having pores or openings that allow water(or other liquids) to flow through them
Term
Polarity
Definition
Uneven distribution of charges across a molecule
Term
Precipitation
Definition
The rain, snow, sleet or hail that falls from clouds onto the Earth’s land and oceans
Term
Reservoir
Definition
A lake that stores water for human use
Term
River Basin
Definition
The region of land drained by a river and its tributaries
Term
Runoff
Definition
Precipitation that flows over land into streams and rivers. This water later enters oceans.
Term
Soluble
Definition
Having the ability to be dissolved in another substance
Term
Specific Heat
Definition
The amount of heat needed to raise the temperature of one gram of a substance by one degree Celsius
Term
Surface Tension
Definition
The force that acts on the particles at the surface of a material
Term
Surface Water
Definition
Water found on the surface of the Earth
Term
Transpiration
Definition
Water vapor given off by plant photosynthesis
Term
Universal Solvent
Definition
The quality of water that makes it able to dissolve more substances that any other solvent can
Term
Water Cycle
Definition
The continuous movement of water from the ocean to the atmosphere to the land and back to the ocean
Term
Watershed
Definition
The land area that supplies water to a river system
Term
Wetland
Definition
A land area that is covered with a shallow layer of water during some or all of the year
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