Water Quality and Stewardship

How does oxygen dissolve into the water?

• Right from the air.

• It has always been there.

• Animals put oxygen into the water.

• The oxygen comes from the O in H2O.

What will having dead stuff in the water do to the dissolved oxygen levels?

• Cause more bacteria which will increase the DO.

• Cause more bacteria which will decrease the DO.

• Decompose and not affect the DO.

• Dead stuff won't do anything in the water.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which one of the following will help the water have more dissolved oxygen?

• A low pH.

• A high pH.

• A low temperature (colder water).

• A high temperature (warmer water).

• Good turbidity.

Tags

NGSS.MS-LS2-1

What makes water acidic, like lemon juice and battery acid?

• Pure Water (H2O)

• Negative Hydroxide Ions (OH-)

• Positive Hydrogen Ions (H+)

If a solution has a pH of 8 or more, it is considered...

• A Base or Basic (Alkaline)

• Neutral

• Acidic

Turbidity is what?

• How cloudy the water is.

• How wet the water is.

• How many animals are in the water.

• How many macroinvertebrates are in the water.

Tags

NGSS.MS-LS2-3

If a solution has a pH of 6 or less, it is considered...

• A Base or Basic (Alkaline)

• Neutral

• Acidic

Tags

NGSS.MS-PS1-2

What makes water basic or alkaline, like baking soda and ammonia?

• Pure Water (H2O)

• Negative Hydroxide Ions (OH-)

• Positive Hydrogen Ions (H+)

Nitrates and Nitrites are important nutrients for plants to grow. Too much of these leads to algae growth on top of the water. When this occurs, they block sunlight for plants under the water which eventually leads to loss of plants, loss of oxygen, and death of animals. This process is called:

• Eutrophication

• Biomagnification

• Bioaccumulation

• Food Web Stabilization

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Describes the chemical, physical and biological attributes of water as it is fit for drinking, fishing, swimming, farming, etc

• Water Quality
• Water Sheds
• Dissolved oxygen
• nitrates

Tags

NGSS.MS-PS1-2