Ch 6 - Exploring the Ocean

Question 1

What is the science of studying the ocean called?

Answer 1

Oceanography

Question 2

What do we call scientists who study the ocean?

Answer 2

Oceanographers.

Question 3

The earth has almost how many times as much water as it does land?

Answer 3

three

Question 4

Without water, there would be no…

Answer 4

…life

Question 5

What is a mineral?

Answer 5

A mineral is a substance from the earth that is made of material that was never alive.

Question 6

Name some minerals.

Answer 6

gold

silver

diamonds

lead

calcium

salt

Question 7

What kind of minerals would you expect to find in the ocean?

Answer 7

salt, calcium

Question 8

What are rocks made up of?

Answer 8

minerals

Question 9

Why is the ocean salty?

Answer 9

God made it that way. Scientists who do not believe in God do not know why the sea is salty.

Question 10

Why is the ocean becoming saltier?

Answer 10

More salt is flowing into the ocean, but the salt does not leave the ocean.

Question 11

What does dissolve mean?

Answer 11

It means to break into tiny pieces and become part of a liquid.

Question 12

What does a baleen whale depend upon for food?

Answer 12

plankton

Question 13

What are plankton?

Answer 13

They are tiny plants and animals of the sea.

Question 14

What is the beginning of every food chain?

Answer 14

green plants

Question 15

What does all animal life of the ocean depend on?

Answer 15

plankton

Question 16

What are the tiny green plants in the sea called?

Answer 16

algae

Question 17

What is a food chain?

Answer 17

It is a series of plants and animals, each depending upon the next member in the series for food.

Question 18

What begins every food chain of the sea?

Answer 18

algae

Question 19

Give a brief example of a food chain.

Answer 19

A tiny animal eats a plant.

A bigger animal eats the tiny animal.

A larger animal yet eats the big animal.

Humans eat the larger animal and end the cycle.

Question 20

The movement of water in the ocean contains a lot of…

Answer 20

…energy

Question 21

Name a mammal of the sea.

Answer 21

whale

dolphin

Question 22

Name two invertebrates of the sea.

Answer 22

octopus

jellyfish

starfish

Question 23

What do we call pools of seawater left in the hollows of rocks when the tide goes out?

Answer 23

tide pools

Question 24

What do scientists use to map the ocean floor?

Answer 24

sonar equipment

Question 25

What is sonar?

Answer 25

Sonar is an underwater radar.

Question 26

Name an island formed by a volcano.

Answer 26

Surtsey Island

Question 27

Is the ocean floor flat?

Answer 27

No. There are flat areas, but there are also mountains taller than the tallest mountain on earth.

Question 28

What animals build islands?

Answer 28

corals

Question 29

What do we call the islands made by coral?

Answer 29

coral reefs

Question 30

What do we call matter that settles to the bottom of a liquid?

Answer 30

sediment

Question 31

What covers the ocean floor in many places?

Answer 31

sediment