Envirothon Aquatic Sample Test

Choose the best definition of a watershed.

• A functioning, natural unit, with components of biotic & abiotic factors, whose boundaries are determined by the flux of energy input.

• The surface zone of the planet, extending from within the Earth's crust, & up into the atmosphere, within which all water exists.

• The surrounding land where all water drains to a specific outlet point.

• A building or structure created to store water as a means of conserving the resource for future needs, as in times of drought.

• An even that is part of the hydrologic cycle where water is "shed" from the sky.

Tags

NGSS.MS-ESS2-1

What is contour farming?

• When cool season crops are planted after fall harvest to help tie up nutrients through the winter & prevent them from being washed away.

• When long slopes are broken into shorter ones, by creating flat, step like ledges to farm.

• When crops are planted & tilled along the contours of the hill, instead of being plowed straight up & down the hill.

• When the land is divided into 2 or more paddocks, & livestock is rotated between each one as needed.

• When a berm is built across the contour of a slope to direct water to another area.

Tags

NGSS.MS-LS2-3

A riparian zone is:

• The zone where emergent aquatic plants grow

• The headwaters of a river or stream

• The sediment bottom of a stream

• The land adjacent to the banks of a river or stream

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Define: Eutrophication

• All the organisms, including animals, plants, fungi, & microorganisms, found in a given area

• The downward movement of water through the soil profiles.

• Natural aging of a body of water

• Middle layer of stratified lake- water temp can fluctuate as much as 1 degree C per meter

• Attached surface of bottom material in which organisms can attach or live

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Define: Biota

• All the organisms, including animals, plants, fungi, & microorganisms, found in a given area

• The downward movement of water through the soil profiles

• Natural aging of a body of water

• Middle layer of stratified lake- water temp can fluctuate as much as 1 degree C per meter

• Attached surface of bottom material in which organisms can attach or live

Tags

NGSS.MS-LS2-2

Define: Substate

• All the organisms, including animals, plants, fungi, & microorganisms, found in a given area

• The downward movement of water through the soil profiles

• Natural aging of a body of water

• Middle layer of stratified lake- water temp can fluctuate as much as 1 degree C per meter

• Attached surface of bottom material in which organisms can attach or live

Define: Percolation

• All the organisms, including animals, plants, fungi, & microorganisms, found in a given area

• The downward movement of water through the soil profiles

• Natural aging of a body of water

• Middle layer of stratified lake- water temp can fluctuate as much as 1 degree C per meter

• Attached surface or bottom material in which organisms can attach or live

Tags

NGSS.MS-ESS2-4

Define: Thermocline

• All the organisms, including animals, plants, fungi, & microorganisms, found in a given area

• The downward movement of water through the soil profiles

• Natural aging of a body of water

• Middle layer of stratified lake- water temp can fluctuate as much as 1 degree C per meter

• Attached surface of bottom material in which organisms can attach or live

Tags

NGSS.MS-PS1-4

A gully keeps eroding open in a corn field each spring. The farmer fills it in every year, but it keeps coming back. Which of the following conservation practices would you best recommend to help the farmer protect his resources?

• Heavy Use Area Protection

• Grassed Waterway

• Riparian Buffer

• Crop Rotation

• Fencing

Tags

NGSS.MS-ESS3-4

NGSS.MS-ETS1-2

Mayflies & stoneflies are considered indicators of water quality because they:

• are tolerant of most types of pollution

• require a high DO content in the water

• can immediately change to a terrestrial form when an incident of pollution occurs

• can withstand any change in pH

Tags

NGSS.MS-LS2-4