Unit 00: Chemical + Physical Characteristics of Hydrology

(2 parts) Based on the Q-value chart, what is the optimal (ideal) pH of a river/stream system? Which makes it ______ (acidic or alkaline)?

• 6.8; alkaline

• 7.1; acidic

• 7.3; alkaline

• 7.6; acidic

• 7.9; alkaline

Tags

NGSS.MS-PS1-2

Use the NTU conversion chart for Turbidity in your binder to complete:

What is the Q-value (turbidity) if water has an NTU value of 10?

• 72

• 76

• 80

• 84

Use the NTU conversion chart for Turbidity in your binder to complete:

What is the Q-value (turbidity) if water has an NTU value of 10 cm?

• 72

• 76

• 80

• 84

Use the Nomogram in your binder to complete: The temperature of a body of water is 16°C. We find the amount of dissolved oxygen to be 9.0 ppm. First, find the Saturation %, then determine the Q-value based on the provided information?

• 80

• 85

• 90

• 95

• 100

Which of the following is TRUE?

• Dissolved oxygen has the greatest influence on the overall health of river water

• Warmer water holds less oxygen than colder water

• A river with a health of 95% is very good and healthy

• A body of water that looks ‘dirty’ can actually be very healthy

• All answers are true

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following does NOT increase oxygen levels in a river/stream system?

• Air flow (winds) blowing over the water

• Riffle systems that agitate water, increasing surface area exposure to atmosphere

• Higher turbidity

• Increased plant life

• Colder water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is the process of water breaking down rock (ex. Mountains become sediment) and transporting it?

• Corrosion

• Erosion

• Deposition

• Precipitation

• Evaporation

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

A spectrophotometer does which of the following:

• It measures the temperature of water using light

• It measures a quantity of pH, turbidity, and fecal coliform in water using a beam of light

• It quantifies how much light is transmitted through an ampule that has gone through a chemical reaction

• It quantifies the rate of a chemical reaction that takes place using heat energy and sound waves

Tags

NGSS.MS-PS1-2

NGSS.MS-PS4-2

Our local watershed directs water to which of the following connected rivers?

• The Middle Fork River

• The Chicago River

• The Illinois River

• The Mississippi River

• All answers are correct

Tags

NGSS.MS-ESS2-4

(1.9) Why is water temperature important to dissolved oxygen (DO)?

• DO is highest in warmer water so it has a higher influence on the river health

• DO is temperature dependent, colder water can hold more DO

• DO has a high weighting factor in overall health

• None of the above explain temperature’s relationship to DO

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3