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34 Cards in this Set

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  • Back
Animals have 5 needs. What are they?
Food, Water, Shelter, Oxygen, and Space. These are called "natural resources".
What is a Watershed?
An area of land where water collects.
What is Topography?
Shapes and forms of the land. Montains, valleys, lakes, plains, and elevations.
What is the biological world?
The world of living, or recently living organisms.
What is the geological world?
The world of the non-living, never living. Can be anything from the crust or the atmosphere.
What is the social world?
The social world is the world of people, and how they impact nature.
Define Point Source Pollution
Point Source Pollution is when pollutant comes from a certain location. It is easily identified as a source becuase a discharge pipe connects the source to the water. This can be "pinpointed".
Non-Point Source Pollution.
The pollutant is usually the result of run-off.

RUN OFF- as water runs downhill, it picks up pollutants.

Usually can not be pinpointed. Not easily identified. Also be be from Acid Rain.

ACID RAIN- evaporated pollutants that rain, bad for environments.
A water is heated by the sun, its surface molecules become sufficiently energized to break free of the attractive fore binding them together, evaporate and rise as invisible vapor in the atmosphere.
Watercapor is also emitted from plant leaves by a processd called transpiration. Every day an actively growing plant transpires 5 to 10 times as much water as it can hold at once.
As water vapor rises, it cools and eventually condenses, usually on tiny particles of dust in the air. WHen it condenses, it becomes a liquid again or turns directly into a sold (icce, hail or snow). These water particles then collect and form clouds.
Precipitaion in the form of rain, snow, and hail comes from clouds. Clouds move around the world, propelled by air currents. For instance, when they rise over mountain ranges, they cool, becoming so saturated with water that water begins to gall as rain, snoiw or hail, depending on the temperature of the surrounding air.
Surface Runoff
Precipitation that drains across the land surface into creeks, ponds, lakes, and rivers, thay may eventually take the water back to the ocean. The water may also be stored in lakes, be evaporated, or be percolated.
Surface water moves downwards, or percolates through cracks, joints, and pores in soil and rocks until it reaches the water table where it becomes groundwater.
Water is not only stored, it moves through the ground and eventually discharges again to the surfaces (ocean, or more likely rives and lakes)
Water Table
The water table is the level to which water will rise in a open well.
How does water enter lakes, rivers, and streams?
Through one of three options: Direct Deposit, Run-Off, and Percolation.
Define Direct Deposit
When rain drops directly into lakes etc..
Define Run-Off
When water runs off the land Rian hits the land and flows downhill until it reaches the water.
Define Percolation (In Class Definition)
When the rain hits the land and soaks or seeps through the ground and becomes ground water, eventually running into lakes, streams, rivers, etc..
What is a limiting factor?
Resource that is in short supply. If there is not enough of this, organisms will die. The population will decrease.
Goes up and down. Continual change. Increasing and Decreasing. The opposite of static.
Stays the same. The opposite of dynamic. Not much change. Flat.
Relating to life or living organisms.
Produced or caused by living organisms.
Of or characterized by the absence of life or living organisms.
Contour Lines
Lines on a topographical map that are at the same elevation.
ALL of an animal's needs should be provded by_______
their habitat
How much of the earth's surface is water?
How much of this is available to humans?
How much of this is fresh water?
How much is salt water?
How much water is too far underground or in the air?
How much water is polluted?
How much water is frozen in the ice caps?