Unique Nature of Pure Water
Physical Properties of Seawater
Chemical Properties of Seawater
Ocean Acidification
Carbon Cycle
100

What are marine organisms mostly made up of by weight?

What is water

100

What helps shape life in the ocean?

What are the physical properties of seawater

100

What is one chemical property of the ocean?

What is salinity

100

The carbon that forms the backbone of all organic molecules starts in the what as carbon?

What is the atmosphere

100

The carbon that forms the backbone of all organic molecules starts in the what as carbon?

What is the atmosphere

200

What percentage of water and salt is in seawater?

What is 99.5%

200

Which fundamental properties besides light level and pressure are drastically different in the oceans than on land? 

What is transmission of light and sound

200

Salinity is the total amount of what dissolved in water? 

What is salt

200

About how much CO2 enters oceans each year?

What is 25%

200

Carbon dioxide is converted into organic compounds by what?


What is photosynthesis

300

What is the attraction of two water molecules called?

What is hydrogen bonding

300

In the ocean depths, which color penetrates the deepest while the other colors are absorbed?

What is blue

300

What accounts for 85% of the ions? 

What is sodium and chloride

300

Reduces what in the water?

What is carbonate

300

Respiration by consumers, decomposers, and what breaks down the organic compounds and makes the CO2 available to producers again?


What are producers

400

What is the total kinetic energy of all the particles in a substance or object? 

What is heat

400

As pressure increases, what happens to gasses?

What is compression

400

Which ions come from volcanoes & hydrothermal vents?

What are sulfides and chlorides 

400

Crabs would have a hard time doing what?


What is forming their shells

400

Rising CO2 levels affect the what of the ocean?


What is chemistry

500

Ions dissolved in seawater come from chemical weathering of rocks on land, materials from Earth’s interior, and materials released into the atmosphere by which geological structure?


What are volcanoes

500

The higher density of water causes sound to travel how many times faster in water than in air?

What is 4.5 times faster

500

Which ions come from rivers?

What is sodium, potassium, and magnesium

500

Oyster farmers have seen what % of baby oysters die?


What is 80%

500

About what % of the CO2 emitted into the atmosphere each year in the ocean.


What is 30%