Chapter 7

Question 1

How much percentage of water is there with the 5 oceans?

Answer 1

97%.

Question 2

What does salinity mean?

Answer 2

a term that describes the saltiness of water.

Question 3

Ocean water is about _______ percent salt.

Answer 3

3.5.

Question 4

Sodium Chloride is mostly what?

Answer 4

Made up of ocean water.

Question 5

What are salt evaporation ponds?

Answer 5

They are set up to harvest salt from the ocean.

Question 6

What are sources of salt?

Answer 6

look on page 156. ACTUALLY LOOK. don’t just click through this card.

Question 7

What are the five oceans in the world?

Answer 7

Atlantic, Pacific, Indian, Arctic, and Southern.

Question 8

What are surface ocean currents?

Answer 8

wind-driven currents that move at the ocean surface, often for long distances.

Question 9

What are gyres?

Answer 9

large rotating ocean current systems.

Question 10

What does the North Atlantic Gyre compose of?

Answer 10

Gulf Stream, North Atlantic Drift, Canary, and North Equatorial. Look on page 159 for the diagram.

Question 11

What are deep ocean currents?

Answer 11

density- and temperature- driven currents that move slowly within the ocean; also called thermohaline currents.

Question 12

What is a crest?

Answer 12

the high point of a wave.

Question 13

What is a trough?

Answer 13

the low point of a wave.

Question 14

What is an amplitude?

Answer 14

the vertical distance between a wave crest or trough and the average level of motion.

Question 15

What is a wavelength?

Answer 15

the distance between two wave crests, or the distance between two wave troughs.

Question 16

What is a period?

Answer 16

the time to pass by a single point.

Question 17

What kind of shape does a wave make in the water?

Answer 17

A circular motion.

Question 18

What is a fetch?

Answer 18

the amount of open water over which wind blows.

Question 19

What are swells?

Answer 19

long, fast-moving waves.

Question 20

What is a wave train?

Answer 20

many waves traveling together.

Question 21

What is the Beaufort Wind Force Scale?

Answer 21

used to describe the intensity of wind, scale goes from 0-12, each level of the scale refers to wind speed and its effects, used on land to record wind speed as a measure for weather conditions.

Question 22

What is a tsunami?

Answer 22

a huge wave made by a large disturbance like an underwater earthquake, landslide, or volcanic eruption.

Question 23

What is a marine?

Answer 23

a term that describes things that are part of or from the ocean.

Question 24

What is beach?

Answer 24

an area of coastal sand between, the low tide line ad the line of permanent vegetation.

Question 25

What is a backshore?

Answer 25

the part of a beach above the high tide line.

Question 26

What is a foreshore?

Answer 26

the part of a beach between the high and low tide lines; also called the intertidal zone.

Question 27

What are tidal flats?

Answer 27

a flat, muddy area in the foreshore.

Question 28

What is the most obvious feature of a beach?

Answer 28

SAND!!!!

Question 29

Where are tidal flats located?

Answer 29

The intertidal zone.

Question 30

What do tidal flats have mostly?

Answer 30

dark, sticky mud.

Question 31

Are waves the key difference between tidal flats and beaches?

Answer 31

YES.

Question 32

What is coarse sand?

Answer 32

remaining particles from broken grains etc.

Question 33

What are the hard minerals?

Answer 33

Quartz and Feldspar.

Question 34

What happens to the waves during winter?

Answer 34

waves are stronger on the coasts of the United States than during the summer.

Question 35

What happens to the waves during the summer?

Answer 35

carries sand from deeper water onto the beaches.

Question 36

What is a coast?

Answer 36

the boundary between land and a body of water like the ocean.

Question 37

What is a longshore drift?

Answer 37

the flow of sand a long a coast.

Question 38

What is it called when water comes to the beach at one direction?

Answer 38

upwash.

Question 39

What is it called when water leaves the beach at a different angle?

Answer 39

backwash.

Question 40

What is a jetty?

Answer 40

a barrier that is built to control or slow down ocean currents along a coast.

Question 41

What is a breakwater?

Answer 41

a barrier which protects a harbor from waves.

Question 42

What is a continental shelf?

Answer 42

the ocean bottom that extends from a coast or shoreline to the continental slope.

Question 43

What are dredges?

Answer 43

the solution to remove breakwater or use pumps or to remove sand.

Question 44

What is a submarine canyon?

Answer 44

Sand drifting down the steep face of a continental shelf cuts into the shelf just like streams cut into valleys.

Question 45

What is a continental margin?

Answer 45

the region around continents that includes the continental shelf, continental slope, and the continental rise.

Question 46

What is a barrier island?

Answer 46

a low, sandy island that lies parallel to the shoreline. blocks waves that come into shore and provides sheltered water between the island and the shore.

Question 47

What is bank?

Answer 47

a low, flat region on the continental shelf.

Question 48

What is the true ocean floor’s name?

Answer 48

The abyssal plain, flat and smooth, lies between 2,200 and 5,500 meters deep.

Question 49

What is a seamount?

Answer 49

a steep-sided mountain that rises from the ocean floor.

Question 50

What is a guyot?

Answer 50

a seamount that has eroded so that it has a flat top and is underwater.

Question 51

What are deep ocean trenches?

Answer 51

the deepest parts of the ocean.

Question 52

What are mid ocean ridges?

Answer 52

where two tectonic plates separate and new oceannrust is being made\ A new system of mountain ranges are being made that pass through worlds oceans.