8.E.1.3/8.E.1.4 Last Practice

What is "potable" water

• Water you can transport

• Water you can sell

• Water that is safe for drinking

• Water that comes from the ocean

As the temperature of water increases, the amount of dissolved oxygen _________

• Decreases

• Increases

• Does not change

• None of these

Tags

NGSS.MS-PS3-4

A measure of how clear water is, is known as

• pH

• Dissolved Oxygen

• Temperature

• Turbidity

Bioindicators

• are living organisms that are harmful

• are living organisms that indicate the health of a water ecosystem

• are areas of great biological diverstiy

• None of these

Eutrophication

• An organism used to monitor the health of an ecosystem.
  
• Too many nutrients in a body of water frequently due to runoff from the land. It causes a dense growth of plant life and death of animal life from lack of oxygen.  (It can cause algal bloom.)
  
• amount of oxygen that is present in the water
  

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-3

Which BEST determines the health of a lake used as a source of freshwater? 

• its depth and width
• its temperature and pH
• its location and depth
• its temperature and depth

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Rainbow trout are found in mountain streams and are sensitive to changes in their habitat.  Which would be the best description for the use rainbow trout in water quality testing?

• biological indicator
• invasive species
• nitrates

Which best describes the relationship between temperature and dissolved oxygen in a lake?

• As temperature increases, dissolved oxygen increases.

• As temperature increases, dissolved oxygen decreases.

• As temperature decreases, dissolved oxygen decreases.

• A change in temperature has no effect on dissolved oxygen.

If a large amount of fertilizer enters a lake, which will most likelyhappen?

• The fish population in the lake will increase.

• The temperature of the lake water will increase.

• The number of fish dying in the lake will increase.

• he available food supply for the fish in the lake will increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which would be the most likely cause of large numbers of fish dying in a stream?

• a lack of nitrogen

• high levels of mercury

• decreased carbon dioxide

• low dissolved oxygen concentration

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4