Question 1

What is the ocean?

Accepted Answer

The ocean is a huge body of saltwater that covers more than 70% of Earth's surface. It's home to lots of different animals and plants.

Question 2

Why is the ocean salty?

Accepted Answer

The ocean is salty because it has lots of salt dissolved in the water. This salt comes from rocks on land and is carried to the sea by rivers.

Question 3

What kind of animals live in the ocean?

Accepted Answer

There are many animals in the ocean, like fish, whales, dolphins, octopuses, and sea turtles. Each has adapted to life underwater in different ways.

Question 4

What is coral and why is it important?

Accepted Answer

Coral is a tiny animal that builds hard, colorful structures in the ocean called reefs. These reefs are like underwater cities where many ocean creatures live.

Question 5

How do fish breathe underwater?

Accepted Answer

Fish breathe underwater by using special organs called gills. Gills take in the air that is dissolved in the water and help fish get the oxygen they need.

Question 6

Why do some fish glow in the dark?

Accepted Answer

Some fish glow in the dark because they have special chemicals in their bodies. This glow helps them find food or scare away predators in the deep, dark ocean.

Question 7

What causes ocean waves?

Accepted Answer

Ocean waves are caused by wind blowing across the surface of the sea. The wind pushes the water, making it rise and fall, which creates waves.

Question 8

What is the biggest animal in the ocean?

Accepted Answer

The biggest animal in the ocean is the blue whale. It is also the largest animal on Earth and can grow as long as three school buses.

Question 9

Why are ocean plants important?

Accepted Answer

Ocean plants, like seaweed and phytoplankton, provide food and oxygen for many sea creatures. They also help keep the air we breathe clean and healthy.

Question 10

What is a sea turtle?

Accepted Answer

A sea turtle is a reptile that lives in the ocean and has a hard shell to protect it. Sea turtles are good swimmers and travel long distances to lay eggs on sandy beaches.

Question 11

How deep is the ocean?

Accepted Answer

The ocean is very deep, with the deepest part called the Mariana Trench. It is deeper than Mount Everest is tall!

Question 12

What do sharks eat?

Accepted Answer

Sharks eat a variety of foods, depending on the species. Some eat fish and seals, while others eat plankton or crabs.

Question 13

What is plankton?

Accepted Answer

Plankton are tiny organisms that float in the water and include plants (phytoplankton) and animals (zooplankton). They are very important because they are food for many sea animals.

Question 14

How do dolphins communicate?

Accepted Answer

Dolphins communicate using sounds like clicks and whistles, as well as body movements. These sounds help them stay in touch with each other, especially in the dark or murky water.

Question 15

What is an octopus?

Accepted Answer

An octopus is a sea creature with a soft body and eight long arms. Octopuses are very smart, and they can change their color and texture to hide from predators.

Question 16

Why do whales migrate?

Accepted Answer

Whales migrate to find food and to have their babies in warmer waters. They travel very long distances each year between their feeding and breeding grounds.

Question 17

What is seaweed?

Accepted Answer

Seaweed is a type of plant that grows in the ocean and comes in many shapes and colors. It is a source of food for many ocean animals and is also used by people in cooking and products.

Question 18

How do sea animals stay warm in cold water?

Accepted Answer

Many sea animals have blubber, which is a thick layer of fat under their skin that keeps them warm. Other animals, like penguins, have special feathers or fur to help them stay warm.

Question 19

What is the Great Barrier Reef?

Accepted Answer

The Great Barrier Reef is the largest coral reef system in the world, located in Australia. It is home to a huge variety of sea life and is an important and beautiful ecosystem.

Question 20

Why is it important to protect the ocean?

Accepted Answer

It's important to protect the ocean because it is home to many amazing animals and plants and provides us with food and oxygen. Taking care of the ocean also helps keep our planet healthy and beautiful.

The Biology of Ocean Life - 20 FAQs Explained Simply