Science - Oceans

The ocean, a vast and mysterious region. It covers 70 percent of the Earth's surface. There is so much ocean to learn about.

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​Exploring Earth's Oceans

​Discovering the Ocean depths

​The ocean's depth varies across it's wide
expanse. The average depth of the world's oceans is around 12,000 feet. The deepest known point in the ocean is known as the Mariana Trench. Located in the Western Pacific Ocean, it plunges around an astonishing 36,000 feet.

The oceans play a pivotal role in regulating the Earth's climate, storing heat and influencing weather patterns. The ocean serves as a massive heat reservoir absorbing and redistributing solar energy across the planet.

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How the ocean impacts the Earth?

This heat transfer helps balance temperature gradients, thereby influencing the onset of seasons, ocean currents and atmospheric circulation.

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The Ocean

& The Climate

The Ocean stores and distributes heat throughout the earth. This make the seasons occur.

​QUICK RECAP

The deepest known part of the ocean is around 36,000 feet

​Why is the ocean salty?

​The ocean is full of salt.
It's content averages around 3.5% of salt.

​The main reason for this is, erosion. The constant erosion of rocks on land. This releases minerals into rivers and eventually the ocean.

Definitions:
Vast: of very great extent or quantity
Mysterious: difficult or impossible to understand, explain or identify
Expanse: an area of something, typically land or sea, presenting a wide continuous surface
Depth: The distance from the top or surface to the bottom of something
Astonishing: Extremely surprising or impressive
Pivotal: of crucial importance in relation to the development or success of something else
Regulating: Control or maintain the rate of speed of something so that it operates properly
Climate: a region with particular weather pattern
Influencing: Having an effect on something
Reservoir: A place where water is stored
Absorbing: Take in or soak up by chemical or physical action
Redistributing: distribute differently or again
Solar: relating to or determined by the sun
Energy: The strength and vitality required for sustained physical or mental activity
Transfer: Move from one place to another
Balance: Equal distribution of weight, amount etc
Temperature Gradient: A physical quantity that describes in which direction and at what rate the temperature changes the most rapidly around a particular location.
Currents: A body of water or air moving in a definite direction, especially through a surrounding body of water or air in which there is less movement.
Atmospheric Circulation: Is the large scale movement of air and by means which thermal energy is distributed on the surface of the Earth
Erosion: The gradual destruction or wearing away of something
Mineral: A solid substance that occurs naturally.

Multiple Choice

What percentage of the earth does the ocean cover?

• 10%

• 50%

• 33%

• 70%

Multiple Choice

What does the ocean store, that influences weather patterns?

• Radiation

• Heat

• Minerals

• Vitamin D

Multiple Choice

What is the average salt content of the ocean?

• 3.5%

• 15%

• 7.7%

• 100%

Multiple Choice

Where is the deepest known point in the ocean located?

• Tonga Trench

• Philippine Trench

• Mariana Trench

• Molly Deep

Multiple Choice

What is the estimated average depth of the world's oceans?

• 19,000 ft

• 100,000 ft

• 12,000 ft

• 33,000 ft