ocean acidification

Man made carbon dioxide comes from the burning of fossil fuels.  An example of a fossil fuel is

• wood
• oil
• shale

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NGSS.MS-ESS3-5

Ocean acidification begins with 

• pollution from ships
• carbon dioxide released from combustion
• dumping of waste from cities into the ocean

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NGSS.HS-ESS2-6

Carbon dioxide and seawater combine to form

• calcium carbonate
• carbon monoxide
• carbonic acid 

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NGSS.HS-ESS2-6

NGSS.HS-PS1-2

The H+ ion is a(n)

• acid
• base
• neutral

Marine organisms make their shells from calcium and

• chloride
• carbonate
• seawater

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NGSS.MS-LS2-3

NGSS.MS-PS1-1

An example of a marine organism that needs calcium carbonate 

• a crab
• a shark
• an octopus

Very slight increases in the acidity of seawater __________  marine organisms that make shells.

• doesn't bother
• has no effect on 
• is unhealthy and stresses

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NGSS.HS-LS2-6

NGSS.HS-LS4-5

Carbon dioxide levels in the air have changed throughout earth's history.  The difference today is how ______ the change is happening.

• rapidly 
• slowly 
• wide spread

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NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

People depend on ocean organisms for __________________.

• minerals
• fuels
• food and water
• All of these choices

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NGSS.HS-ESS3-1

Why is the increase of Greenhouse gasses a big issue?

• It causes climate change and increase in the global temerature 
• It can lead to a major increase in Greenhouses 
• It leads to more factories
• It causes a major decrease in people

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NGSS.HS-ESS2-2

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NGSS.HS-ESS3-5

NGSS.HS-ESS3-6