Vocabulary
Life Cycle
Lentic Zones
Turn Over
Lakes
100

An area filled with water, localized in a basin, that is surrounded by land, apart from any river or other outlets that serve to feed or drain it.

What is a lake?

100

The name of a young lake. 

What is Oligotrophic Lake?

100

The layer of the lake that receives sunlight- adequate for photosynthesis.

What is the Euphotic Zone?

100

The cold layer of water in the summer.

What is the hypolimnion?

100

In order to be classified as a lake, it must have an area of......

What is 10 acres?

200

All the waters on or near the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.

What is hydrosphere?

200

Name given to an old aged lake. 

What is Eutrophic Lake? 

200

The zone that refers to the bottom of the lake.

What is the Benthic Zone?

200

The warm layer of water in the summer.

What is the epilimnion?

200

During what seasons is the oxygen content in the surface lake water the highest?

What are spring and summer?

300

The study of all the waters with regards to their measurement. 

What is hydrography?

300

Middle-aged lake. Characteristics?

 What is Mesotrophic Lake? - characteristics fall between young and old lakes

300

The zone near the shore that supports plant growth.

What is the Littoral Zone?

300

The region of rapid temperature change.

What is the metalimnion or the thermocline?

300

Two sources for oxygen increase.

What are atmospheric oxygen and photosynthesis?

400

Name given to moving bodies of freshwater and provide an example.

What are lotic bodies?  Rivers, streams, and creeks.

400

Give three characteristics of an Oligotrophic Lake?

What are rocky shorelines, a limited amount of nutrients, low numbers of aquatic plant life, clear water?

400

The zone with no light for vegetation.

What is the Profundal Zone?

400

Refers to a change in the temperature at different depths in the lake, and is due to the change in water's density with temperature

What is thermal stratification?

400

Two sources for oxygen decrease.

What are respiration and decomposition?

500

The study of freshwater or saline waters contained within the continental boundaries- inland waters.

What is limnology?

500

Three characteristics of an Eutrophic Lake.

What are sandy beaches, gradual shorelines, a high amount of nutrients and a large number of aquatic plants, and low clarity water.

500

The open water zone with available sunlight for photosynthesis

What is the Limnetic Zone?

500

Explain what happens when a lake turns over in the fall.

During the fall, the warm surface water begins to cool. As the water cools, it becomes more dense, causing it to sink. This dense water forces the water of the hypolimnion to rise, "turning over" the layers

500

Name the fice characteristics of a lake that a limnologist would study?

What are..... 

Landscape 

Lake basin

Water temperature and oxygen levels

Lake productivity - plant life

Fish population

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