Water Quality and Salinity Warmup

This is the measure of the amount of oxygen that is dissolved into the water

• nitrates

• phosphates

• turbidity

• dissolved oxygen

What is dissolved oxygen?

• The property of containing salt

• The amount of suspended solids

• The measure of the amount of oxygen that is dissolved

• Describes how acidic or basic water is

All of the following add Dissolved Oxygen to the water except....

• From Photosynthesis by underwater plants

• Air in the atmosphere

• Movement of the water

• Underground Oxygen deposits

Tags

NGSS.MS-LS1-6

Why does the amount of dissolved oxygen increase during the day?

• The sunlight allows photosynthesis to occur

• The fish are more active so they are respiring more

• The warmer temperatures allow the water to hold more oxygen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

This is the measure of how salty the water is

• nitrates

• phosphates

• salinity

• temperature

Nora, Olivia, and Daniel are conducting a science experiment to understand the factors affecting the dissolved oxygen level in a water sample they collected from a nearby pond. According to their observations, what could potentially affect the dissolved oxygen level in the water sample?

• Waste runoff from nearby industries

• Changing weather conditions

• All of the above

• Turbidity caused by stirring the water sample

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

A body of water showed a high turbidity level, high levels of nitrates and phosphates, a pH of 7.5, and low dissolved oxygen levels. Would this body of water be considered healthy?

• Yes

• No

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

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

Measurement of the condition of water and how clean it is for living things, including humans.

• glaciers

• marine biologist

• water quality

• algae

Tags

NGSS.MS-ESS3-4

What is water quality?

• It describes the condition of the water

• It is the continuous movement of water on, above, and below the surface of the Earth

• It is the property of containing salt

• It is the total amount of suspended solids.