Ocean Currents Overview

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Questions and Answers

Ocean currents can sometimes change ______.

direction

Ocean currents carry ______ around Earth.

energy

A change in the direction of a current can change ocean surface ______ at various locations.

temperatures

In many parts of the ocean, surface currents come together to form ______, vast areas of water moving in circles.

<p>gyres</p> Signup and view all the answers

Gyres move water in a ______ pattern across the globe.

<p>predictable</p> Signup and view all the answers

The ocean covers ______% of our planet.

<p>71</p> Signup and view all the answers

Ocean water flows in consistent ______ patterns.

<p>patterns</p> Signup and view all the answers

Scientists call ocean water flowing in a continuous path an ocean ______.

<p>current</p> Signup and view all the answers

Currents carry all kinds of ______ and organisms all over the world.

<p>objects</p> Signup and view all the answers

Ocean currents carry energy from the sun all around ______.

<p>Earth</p> Signup and view all the answers

A warm current moving north from the ______ keeps Japan warmer than other places.

<p>equator</p> Signup and view all the answers

The motion of water around Earth’s ocean is one of the main ways energy moves around the ______.

<p>planet</p> Signup and view all the answers

The ocean is always ______ from place to place.

<p>moving</p> Signup and view all the answers

The currents move across Earth’s ______ surface.

<p>same latitude</p> Signup and view all the answers

At the equator, a large amount of energy is transferred from the sun to the ocean’s ______.

<p>surface</p> Signup and view all the answers

As the current moves north, it carries this energy away from the ______.

<p>equator</p> Signup and view all the answers

The current traveling from the South Pole carries less energy than currents coming from the ______.

<p>equator</p> Signup and view all the answers

If the ocean water weren’t moving, surface temperatures would only depend on their ______.

<p>latitudes</p> Signup and view all the answers

A cold current traveling north from Antarctica keeps the western coast of Australia ______ than other locations.

<p>cooler</p> Signup and view all the answers

Ocean currents form five main ______, or circles.

<p>gyres</p> Signup and view all the answers

The maps suggest that ocean currents appear to be ______.

<p>constant</p> Signup and view all the answers

Thousands of shoes fell off the ship that was carrying them across the ______.

<p>ocean</p> Signup and view all the answers

During a powerful ______ in 1990, containers packed with 61,000 shoes fell off a cargo ship.

<p>storm</p> Signup and view all the answers

The shoes eventually washed up on beaches in ______, Hawaii, and Japan.

<p>Oregon</p> Signup and view all the answers

The ocean covers ______% of Earth and is in constant motion.

<p>71</p> Signup and view all the answers

The movement of the ocean carries ______ and objects wherever it goes.

<p>energy</p> Signup and view all the answers

The shoes made their way to these locations from the place where the shoes were ______.

<p>spilled</p> Signup and view all the answers

Surprising things sometimes wash up on ______, and this can happen all over the world.

<p>shore</p> Signup and view all the answers

The cargo ship was travelling across the ______ Ocean.

<p>Pacific</p> Signup and view all the answers

Flashcards

Ocean Currents

Large streams of seawater that move energy around the Earth.

Gyres

Large circular patterns of ocean currents that form in several ocean basins.

Surface Currents

Water currents that flow near the ocean's surface, influenced by wind and the Earth's rotation.

Energy Transfer in Oceans

Ocean currents carry energy, affecting temperatures and climates in different regions.

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Impact of Currents

Ocean currents can carry objects and organisms across vast distances, affecting marine ecosystems.

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Ocean Coverage

The ocean covers 71% of Earth's surface.

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Ocean Motion

The ocean is in constant motion, affecting energy and objects.

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Shoes Incident

In 1990, 61,000 shoes fell from a cargo ship during a storm.

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Cargo Ship

A large vessel used to transport goods across oceans.

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Washing Up

Objects floating in the ocean can wash up on shores worldwide.

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Container Spill

A significant number of goods falling off a ship at sea.

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Geographic Spread

Shoes from a single event washed up across Oregon, Hawaii, and Japan.

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Storm Impact

Powerful storms can lead to unexpected maritime incidents.

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Equatorial Energy Transfer

The process where a large amount of energy is transferred from the sun to the ocean at the equator.

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Warmer Water at Latitude

Ocean currents can cause warmer water than expected for their latitude.

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Energy Transfer Decreases

Energy transferred from the sun decreases as you move away from the equator.

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Cold Current Effects

Cold currents lower ocean surface temperatures below expected values for their latitude.

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Ocean Gyres

Five main circular currents in the ocean that circulate water in large areas.

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Current from South Pole

Currents moving from the South Pole carry less energy than those from the equator.

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Impact of Currents on Temperature

Ocean currents influence local temperatures beyond what latitude alone predicts.

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Movement of Ocean Water

Ocean water is always moving, carrying objects and organisms.

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Transport of Energy

Ocean currents transfer energy from the sun around Earth.

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Role of Ocean Currents

Currents carry objects, organisms, and energy globally.

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Warm Currents

Currents that move warm water from the equator toward the poles.

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Effect on Climate

Ocean currents influence weather and temperature in different regions.

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Object Displacement

Objects like shoes can be moved across oceans by currents.

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Study Notes

Ocean Currents

  • Ocean currents are consistent, continuous paths of moving water
  • Ocean currents carry objects and organisms globally
  • Ocean currents carry energy from the sun around the Earth

Ocean Movement and Energy

  • 71% of Earth is covered by the ocean
  • Ocean water is in constant motion, carrying energy and objects
  • Ocean water movement is not random—it's in patterns called currents
  • The sun's energy is transferred to the ocean surface
  • The energy moves with the ocean currents

Types of Ocean Currents

  • Warm currents move away from the equator
  • Carry more energy
  • Warmer water at locations than expected
  • Cold currents move away from the South Pole
  • Carry less energy
  • Cooler water at locations than expected

Ocean Currents and Locations

  • Warm currents keep Japan warmer than nearby areas at the same latitude
  • Cold currents keep the western coast of Australia cooler than nearby areas at the same latitude

Major Ocean Currents

  • Ocean currents create circular patterns called gyres
  • The gyres move water, energy, and organisms around the world
  • Shoes were carried by ocean currents from the ship to Oregon, Hawaii, and Japan

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