Oceans And Seas

Question 1

Where is the Pacific Ocean located?

Answer 1

The far west of the map, west to north and South America (comes round to east of Asia)

Question 2

Where is the Arctic Ocean located?

Answer 2

Far north

Question 3

Where is the Atlantic Ocean located?

Answer 3

Closer to the centre of the map, between the Americas and Africa/Europe

Question 4

Where is the Indian Ocean located?

Answer 4

To the east of Africa, south of Asia, west of Australia

Question 5

The five oceans are connected by…

Answer 5

Water currents

Question 6

Features of the ocean floor

Answer 6

• continental slope
• seamount
• abyssal plains
• mid-ocean ridge
• volcanic islands
• continental shelf
• trenches

Question 7

What are volcanic islands?

Answer 7

They exist in the ocean floor. When they erupt, they create mountains which are taller than the surface of the ocean. Then when lava cools, an island is formed above the ocean

Question 8

What are abyssal plains?

Answer 8

Underwater land which can be found 3,000 to 6,000 metres deep

Question 9

What is bathymetry?

Answer 9

The study of underwater, depth of water floors

Question 10

Ocean currents distribute ________ around the world

Answer 10

Heat

Question 11

What is latitude?

Answer 11

The distance of a place from the equator, measures in degrees

Question 12

What is altitude?

Answer 12

the height of an object or point in relation to sea level or ground level.

Question 13

What is the thermohaline circulation cycle?

Answer 13

A part of the large scale ocean circulation that is driven by surface heat and freshwater.

Question 14

Deeper water are ………… (more/less) saline

Answer 14

more

Question 15

Shallower water are ……… (more/less) saline.

Answer 15

less

Question 16

What is ocean acidification?

Answer 16

Ongoing acidification is the ongoing decrease in the Ph of the Earth’s ocean

Question 17

Describe the process of ocean acidification.

Answer 17

• carbon dioxide in the atmosphere dissolves into the ocean (adds carbon to the water)
• when co2 mixes with water it creates a weak acid called carbonic acid which means there is less carbon available for building shells and coral
• over time, as humans add more co2 to the oceans, they become more and more acidic

Question 18

What is the impact of ocean acidification on coral reefs?

Answer 18

The decrease in carbon availability in the oceans (happening from ocean acidification) means that seashells and corals are built more slowly and with more difficulty