Mid Unit 3 Quiz- Oysters/Ocean Acidity

Why are oyster farmers on the west coast of the U.S. facing difficulties?

• Due to increased water temperature

• Due to increased water salinity

• Due to increased water acidity

• Due to decreased water levels

Tags

NGSS.HS-ESS3-1

NGSS.HS-ESS3-5

What is the nature of water as described in the diagram? Water is a ___________ covalent compound.

• Non-polar

• Polar

• Neutral

• Acidic

Tags

NGSS.HS-ESS2-5

What does the polarity of water affect in the context of acids?

• It affects the color

• It affects the temperature

• It affects the electrical charge

• It affects the taste

What effect do these reactions have on the ocean?

• Make it more basic

• Make it more acidic

• Increase its temperature

• Decrease its salinity

Tags

NGSS.HS-LS2-5

What ions are involved in the formation of shells in shellfish?

• Na+ and Cl-

• Ca2+ and CO3 2-

• H+ and OH-

• Mg2+ and SO4 2-

What is the chemical formula for calcium carbonate?

• NaCl

• CaCO3

• H2O

• CO2

Tags

NGSS.MS-PS1-1

What ions are necessary for the formation of CaCO3 in shellfish?

• Na+ and Cl-

• Ca2+ and CO3 2-

• H+ and OH-

• Mg2+ and SO4 2-

What is the result of decreased CO₃²⁻ availability in the water?

• Increased shell mass

• Decreased shell mass

• No change in shell mass

• Increased shell formation

What happens to the mass of the shell created with increased acidity?

• It increases.

• It remains the same.

• It decreases.

• It doubles.

Tags

NGSS.HS-PS1-7

How does temperature affect the dissolution of shells in acidic solutions?

• Higher temperature slows down the dissolution.

• Higher temperature speeds up the dissolution.

• Temperature has no effect.

• Lower temperature speeds up the dissolution.

Tags

NGSS.HS-PS1-5