Biscayne National Park SCA

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After you've completed the Biscayne National Park unit, complete the assessment below.

The diagram below shows a beaker of water being heated; refer to it when answering questions 1-3.

1. What point represents the movement of denser water?
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2. What point represents the movement of less dense water? *

3. Which of the following best explains how temperature impacts the density of the water in the beaker? *

The density of water is constant regardless of its temperature.

Heat rises which forces fluids like water to move up in a column.

As water is cooled, it becomes less dense.

Warm water is always at the bottom of the beaker.

The diagram below shows ocean currents in the North Atlantic with warm currents in red and cold currents in blue; refer to it when answering questions 4-6.

4. Despite being hundreds of miles to the North, London tends to experience less harsh winters than Boston. What would explain this phenomenon? *

London receives more of the Sun's thermal energy during the winter, making its climate warmer.

London's proximity to the sea makes its winters more mild.

The high amount of precipitation creates more mild winters for London than its latitude would predict.

The Gulf Stream carries warm water to London, making its climate warmer than expected.

5. The Canary Islands are a small archipelago off the northwest coast of Africa. How would you expect the ocean currents to affect the climate of these islands? *

Currents coming from the North tend to make temperatures less extreme.

Cold currents tend not to affect climates very much.

The climate of the Canary Islands would be cooler than expected.

The Canary Islands would receive less rainfall than other islands.

6. Which direction would the prevailing winds come from in tropical location such as Havana, Cuba? Explain your claim using evidence from the diagram. *

7. What kinds of ocean currents would you expect to have the highest salinity? *

Tropical currents near the equator.

Cold water currents far below the surface of the ocean.

All ocean water has roughly equal amounts of dissolved salt.

Any current that moves north to south.

8. How does being near the coast affect a region's climate? *

Being near the sea always makes a region more cooler than latitude alone would predict.

Coastal regions receive more precipitation.

Wind off the ocean can make a region colder in the winter.

Being close to the ocean makes temperatures less extreme throughout the year.

9. List one factor that affects the density of water and explain how it works. (2 points) *

10. How do convection currents in our atmosphere affect ocean currents? *

Convection currents produce prevailing winds that push water around the oceans.

Air absorbs heat from the ocean at the surface, making water cooler.

Heat rising forces ocean water to move where it's warmest.

Air from the upper atmosphere is heated by the sun, then sinks to the surface to warm the ocean waters.

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