Water Testing

a measure of how suitable water may be for drinking

• turbidity

• mangrove forest

• tide

• potability

Which of the following are indicators of healthy water systems?

• high nitrates, high pH, and low temperatures

• low temperatures, high dissolved oxygen, and neutral pH

Tags

NGSS.MS-ESS2-4

What is pH?

• The property of containing salt

• The measure of the amount of oxygen that is dissolved in water

• The amount of suspended solids in water

• The measurement of the acidity or basicity of water

How does acid rain affect the pH of a stream or lake?

• The pH decreases.

• The pH increases.

• Acid rain does not affect pH.

• It causes an explosion.

Tags

NGSS.MS-PS1-2

Which most likely has the highest number of contaminants in the water?

• a water system with moderate turbidity

• a water system with high turbidity

• a water system with low turbidity

• a water system with no turbidity

Hard water contains high amounts of:

• Salt

• Calcium and Magnesium

• Dirt and debris

• Dissolved Oxygen

What does chlorination do to the water?

• Kills microorganisms

• Cleans the water

• Makes the water taste nice

• Removes twigs and sediment

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is a true statement of the diagram above?

• As temperature increases dissolved oxygen increases

• As temperature decreases dissolved oxygen decreases

• As temperature increases dissolved oxygen decreases

• None of the above

Which factors are most characteristic of a healthy body of water?

• high temperature and low amounts of algae

• low salinity and high turbidity

• high pH and low dissolved oxygen

• low turbidity and high dissolved oxygen

Tags

NGSS.MS-LS2-5

What is the primary purpose of water testing in environmental science?

• To determine the water's color

• To assess the water's chemical, physical, and biological characteristics

• To measure the water's temperature

• To calculate the water's flow rate

Tags

NGSS.MS-PS1-2