Oceans | Short Reads

When most people think about Earth, they think about land. You’ve probably spent your entire life on land. If you look at a globe, however, you can see that there is not as much land as water. Most of the Earth is covered by water, and most of that water is salty. Almost all of the salt water is connected into one huge ocean. The ocean covers almost two-thirds of the Earth.


There is only one world ocean. Big pieces of land called continents divide the world ocean into parts, but all of the parts are connected. The four major parts are called the Atlantic Ocean, the Pacific Ocean, the Indian Ocean, and the Arctic Ocean.

Parts of some oceans are called seas. The Caribbean Sea and the Mediterranean Sea are part of the Atlantic Ocean. The Coral Sea is part of the Pacific Ocean.


The ocean is not very deep at the beach. Water along seashores might not even cover your toes. You can wade out into the ocean. You can stand on the bottom near a beach.

Farther out, the ocean is very deep. The deepest parts are in the Pacific Ocean. A place called the Mariana Trench is almost 7 miles (11 kilometers) deep!

Some parts of the ocean floor are flat. Other parts have underwater mountains. The Mid-Atlantic Ridge is a mountain range under the Atlantic Ocean. Melted rock called magma oozes up from cracks along the Mid-Atlantic Ridge. The magma cools and makes new rock.


The ocean is freezing cold in some places and very warm in others. The Arctic Ocean near the North Pole and the ocean in the south around Antarctica are freezing cold. You can see icebergs floating in these oceans.

Ocean water near the equator is always warm. The equator is an imaginary line around the middle of Earth. You can swim in the ocean near the equator all year long.


The ocean has “rivers” of cold or warm water running through it. These “rivers” are called currents. One of the best-known currents is the Gulf Stream. The Gulf Stream carries warm ocean water from the equator up to the north part of the Atlantic Ocean.

Warm and cold ocean water is always moving around the world. In some places cold water comes up from deep in the ocean. Warm water sinks down. Wind blows ocean water at the surface. Waves also move ocean water. Changes in ocean currents can make weather changes on land. Sometimes the changes cause mild winters in some places and lots of rainfall in other places.


The ocean is full of living creatures. The tiniest ocean creatures are plankton. Plankton drift on the surface. The biggest ocean animal is the blue whale. The blue whale can be 80 feet (24 meters) long. It is the biggest animal on Earth.

Many kinds of fish and shellfish live in the ocean. Your tuna sandwich comes from the tuna, a fish that swims in the ocean. Crabs, lobsters, and shrimp crawl around on the ocean floor. Squid and octopus dart about with their long arms and tentacles.

Different creatures live at different ocean depths. Very strange creatures live deep in the ocean where there is no sunlight. Some deep-ocean fish glow in the dark. Some of them are blind.


Oceanographers are scientists who study the ocean. They worry about ocean pollution. Thousands of ships carry oil and other goods across the ocean. Oil spills from ships can pollute the ocean. People build factories close to the ocean shore. Chemicals from factories can pollute the oceans. Chemical bug killers from farms can also drain into the ocean.

People get many things from the ocean. Fish and other food come from the ocean. It is important to keep ocean water clean.

Support & Benefit on Patreon

Are you serious about building your vocabulary?

Check out my Word Search Games and Activities book series.


Submit a Comment

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Want more like this post?

Vaccination | Short Reads

Vaccination | Short Reads

VACCINATION “You’ll just feel a little jab.” Ouch! That wasn’t too bad, and it could save your life. Most of us have had “shots” from a needle. These are usually vaccinations, and they are extremely valuable. They help protect us against diseases. VIRUSES Most...

Lobsters | Short Reads

Lobsters | Short Reads

LOBSTERS Can you grow a new body when you get too big for your old one? Of course not. But lobsters can. They keep growing their whole life. As a lobster grows, it often molts. This means that it grows a new shell and casts off its old one. It even regrows any legs or...

The Great Wall of China | Short Reads

The Great Wall of China | Short Reads

GREAT WALL OF CHINA Imagine a huge wall stretching for thousands of miles across the land. The wall winds through hills, climbs mountains, and crosses deserts. If you visit China you can see a wall like this. The Great Wall of China, as it is known, is the longest...

Paul Revere | Short Reads

Paul Revere | Short Reads

PAUL REVERE On April 18, 1775, in the dark of night, Paul Revere awoke to pounding on his door. Friends brought news: British troops were on the move! Revere pulled on his clothes and jumped on a borrowed horse. Along with two other horsemen, he galloped from his home...

Exercise | Short Reads

Exercise | Short Reads

People exercise to keep healthy. They exercise to lose weight or to stay fit. They exercise to make their muscles bigger and stronger. Maybe you play soccer or some other sport for exercise. Getting exercise can be fun and can make you feel good.
Exercise is a big part of staying physically fit. People who are physically fit are alert and full of energy. Exercise can also help people handle stress. Exercise is especially good for children, teens, and older persons.

Eclipse | Short Reads

Eclipse | Short Reads

Imagine how frightened prehistoric people must have been when they saw a black disk covering up the Sun. This darkening of the Sun in the middle of the day is called an eclipse. The Moon can go dark in a similar way at night. Eclipses are caused by shadows.

Alligators and Crocodiles | Short Reads

Alligators and Crocodiles | Short Reads

What is the difference between an alligator and a crocodile? That’s kind of a trick question. “Crocodile” is a common name for an order, or large group, of animals called crocodilians. Alligators, caimans, and gavials are all crocodilians—but so are crocodiles.

Democracy | Short Reads

Democracy | Short Reads

When you play with friends, who gets to choose the game? Do you all decide together? Do each of you play a part in the decision? If so, you and your friends are a democracy.
Usually, when we speak of a democracy, we mean a country. In a democratic country, the people choose how they will be governed. Most of the time, they do this by electing leaders who run the government.

Marco Polo | Short Reads

Marco Polo | Short Reads

They called him “the man with a million stories.” People flocked to Marco Polo’s home to hear him tell exciting tales about his travels in distant lands.
Marco Polo won fame for his journeys across Asia. He wrote a book about his travels that became one of the most famous travel guides in history.

Ice Cream | Short Reads

Ice Cream | Short Reads

Ice cream is a frozen treat that comes in hundreds of flavors. What’s your favorite flavor? Is it vanilla? That’s the most popular flavor by far. Chocolate ranks second in popularity.
Ice cream is especially popular in the United States. In fact, Americans eat more ice cream than people in any other country.

English Plus Bites

Are You Hungry?

Daily English Plus Bites are just a couple of clicks away...

Sign up and start receiving daily short learning emails which include idioms, reading, word power, common mistakes, grammar and more.

Unlock a world of learning delivered daily to your inbox.

You have Successfully Subscribed!

Pin It on Pinterest