Our Oceans
Marine Animals
History and Human Impacts
The Chemistry
How can you help?
100
The Great Barrier Reef is off the coast of this state.
Queensland
100
What kind of animal is this?
Macroalgae (think sushi)
Cnidaria ("I shall call him squishy" - Dory)
Mollusc (HELP my home is dissolving due to ocean acidification)
Polychaete (*wiggle wiggle*)
Chordate (I have a backbone)
Cnidaria
100
The event where humans transitioned from creating goods by hand to using machines.
Industrial Revolution
100
pH measures the concentration of what chemical ion?
Hydrogen
100
True or false
You can make changes in your life do help reduce ocean acidification.
True
200
The ocean on the eastern coast of Australia.
Pacific
200
What kind of animal is this?
Macroalgae (think sushi)
Cnidaria ("I shall call him squishy" - Dory)
Mollusc (HELP my home is dissolving due to ocean acidification)
Polychaete (*wiggle wiggle*)
Chordate (I have a backbone)
Macroalgae
200
The primary gas released by burning fossil fuels.
Carbon dioxide (CO2)
200
The common word for calcium carbonate.
Limestone
200
Name 3 ways you can help with ocean acidification.
Reduce your carbon footprint by:
- Buying local.
- Reduce meat consumption.
- Avoid wasting.
- Turn off lights and unplug devices not in use.
Contact your government officials asking them to take action on and fund research for renewable energy.
300
The current that runs along the eastern coast of Australia.
East Australian Current
300
What kind of animal is this?
Macroalgae (think sushi)
Cnidaria ("I shall call him squishy" - Dory)
Mollusc (HELP my home is dissolving due to ocean acidification)
Polychaete (*wiggle wiggle*)
Chordate (I have a backbone)
Chordate
300
The ocean acts as a ..... sink.
Carbon
300
This happens to calcium carbonate in the presence of acids.
Dissolves
300
How will ocean acidification affect you?
Bye-bye holiday destinations (no nice snorkelling locations, more erosion)
Affect the food available to us.
Reduced jobs.
400
Oceanic water layer in which water temperature decreases rapidly with increasing depth.
Thermocline
400
What kind of animal is this?
Macroalgae (think sushi)
Cnidaria ("I shall call him squishy" - Dory)
Mollusc (HELP my home is dissolving due to ocean acidification)
Polychaete (*wiggle wiggle*)
Chordate (I have a backbone)
Polychaete
400
True or False
Fossils from prehistoric organisms can show change in ocean pH levels over long periods of time.
True
400
When CO2 is absorded by the ocean, it turns into …., and reduces the pH of the water.
Carbonic acid (H2CO3)
400
True or false
Ocean acidification benefits some animals.
True!
Growth rate of some sea stars increases.
500
Fissure on the sea floor which heated water discharges.
Hydrothermal vents
500
What kind of animal is this?
Macroalgae (think sushi)
Cnidaria ("I shall call him squishy" - Dory)
Mollusc (HELP my home is dissolving due to ocean acidification)
Polychaete (*wiggle wiggle*)
Chordate (I have a backbone)
Mollusc
500
What two groups of organisms are most effected by ocean acidification? Why?
Cnidaria - corals - their skeletons are made of calcium carbonate which will dissolve and/or be hard to grow in acidic environments.
Molluscs - oysters/snail - their shells are made of calcium carbonate which will dissolve and/or be hard to grow in acidic environments.
500
A reduction in pH in the ocean over an extended period of time is known as….?
Ocean Acidification
500
Why do you think it is important to learn about ocean acidification?
Any answer is good!