Earth the Water Planet

Question 1

what is Earth known as? and why?

Answer 1

The blue planet, because Earth has a blue glow from space

Question 2

what % of Earth is water? and what is salt/fresh?

Answer 2

71%
salt- 97%
fresh- 3%

Question 3

How much of the Northern Hemisphere is covered by water?

Answer 3

61%

Question 4

how much of the southern hemisphere is covered by water

Answer 4

81%

Question 5

why is the southern/ northern hemisphere % of water coverage

Answer 5

Northern hemisphere has more land mass than water

Question 6

what are the 5 ocean basins from largest to smallest? Remember PAISA

Answer 6

1. Pacific
   2.Atlantic
2. Indian
   4.Southern
   5.Artic

remeber PAISA

Question 7

what is the origin of Earth’s oceans

Answer 7

combination of 2:
-comets/meteorites bombardment
-as Earth was cooling (Ice Age)

Question 8

What is high specific heat?

Answer 8

when hydrogen bonds absorb heat when they break, and release heat when they form

Question 9

what is example of high specific heat’s meaning?

Answer 9

means that a lake wont freeze or heat up suddenly

Question 10

what 2 ways does energy change form in water

Answer 10

solid>liquid>gas
gas>liquid>solid

Question 11

what does the ocean do for Earth (warm/cool)

Answer 11

1. influence climate by absorbing solar radiation
   2.control wind speed/direction
   3.part of the water/ carbon cycle
   4.phytoplankton in the ocean produces roughly half of the oxygen on Earth
2. releases/ hold aerosols that influence cloud cover, precipitation, carbon
3. humidify and dry the Earth

Question 12

What is called the Global Conveyer Belt?

Answer 12

Thermohaline Circulation

Question 13

what does thermo mean?

Answer 13

temp/heat

Question 14

what does haline mean?

Answer 14

salt

Question 15

what does freshwater freeze/ boil at

Answer 15

boils 100degress c
freezes at 0degress c

Question 16

what does saltwater boil/freeze at

Answer 16

boil ~102degrees c
freezes at ~2degress c

Question 17

where does the warm water from the equator go to

Answer 17

warm seas/wind are moved toward the icy poles

Question 18

Where does cold water from the north flow south to?

Answer 18

The equator

Question 19

how does the Global conveyer belt work? (thermohaline circulation)

Answer 19

moves water between the deep and surface ocean worldwide

Question 20

how do surface currents work

Answer 20

driven winds that are caused by the uneven heating by the sun and direction is impacted by the Coriolis Effect 10% of ocean

Question 21

how do deep currents work

Answer 21

driven by temperature and salinity concentrations 90% of ocean

Question 22

what is salinity

Answer 22

measure of the amount of dissolved salts in salwater on average concentration of ocean

Question 23

why does Europe have mild winters

Answer 23

due to the heat that is released from the gulf stream

Question 24

what is a gyre

Answer 24

large system of ocean currents moving in a circle

Question 25

how do the ocean currents in the northern hemisphere tend to move

Answer 25

clockwise

Question 26

how do the ocean currents in the southern hemisphere tend to move

Answer 26

anti-clockwise

Question 27

what are the 5 major gyres?

Answer 27

North pacific gyre Indian gyre South pacific gyre South Atlantic gyre North Atlantic gyre

Question 28

What is the Coriolis Effect?

Answer 28

the spinning of Earth"s equator is faster than the poles which makes ocean currents/ objects on Earth to move in a circular motion - equator is faster than the poles so the poles deflect some water

Question 29

what speeds up the rate of salinity

Answer 29

ice forming, precipitation, evaporation, salt/fresh water mixing