2/26/2014
$100 Question from H1
Name 3 factors that
affect surface currents
$100 Answer from H1
Global winds,
coriolis effect,
continental deflections
1
2/26/2014
$200 Question from H1
Cold water is sent
from what part of the
world?
$200 Answer from H1
North and south poles
2
2/26/2014
$300 Question from H1
What is it called when currents change
direction when they meet continents?
$300 Answer from H1
Continental deflections
3
2/26/2014
$400 Question from H1
Global winds at the equator blow
from _____ to ______.
$400 Answer from H1
East to west
4
2/26/2014
$500 Question from H1
What direction do ocean currents
flow in in the northern
hemisphere. What are these
currents called?
$500 Answer from H1
Clockwise - gyres
5
2/26/2014
$100 Question from H2
Define Deep Currents.
$100 Answer from H2
Streamlike
movements of ocean
water located far
below the surface.
6
2/26/2014
$200 Question from H2
Deep currents are controlled by water
density. Less dense water flows
___________ of denser water.
$200 Answer from H2
On top
7
2/26/2014
$300 Question from H2
How is salinity affected by
evaporation?
$300 Answer from H2
When water evaporates
it leaves the solids
behind causing an
increase in salinity.
8
2/26/2014
$400 Question from H2
How is salinity affected by freezing?
$400 Answer from H2
When water freezes it
leaves the solids behind
causing an increase in
salinity.
9
2/26/2014
$500 Question from H2
Describe what happens to water molecules
when they are cooled?
$500 Answer from H2
They move closer together, the volume
decreases, and it sinks to the bottom.
10
2/26/2014
$100 Question from H3
A surface current carrying warm
water makes the climate of the land
around it ______.
$100 Answer from H3
Warmer!
11
2/26/2014
$200 Question from H3
Which US coast is warmer? How do
you know this?
$200 Answer from H3
East coast. The warm water from the
equator is brought to it.
12
2/26/2014
$300 Question from H3
DAILY DOUBLE
Describe how upwelling happens?
$300 Answer from H3
Wind blows away from the
coast. Warm water is
replaced by the deep cold
water.
13
2/26/2014
$400 Question from H3
What is a benefit of upwelling?
$400 Answer from H3
It brings nutrients from the deep
up to the surface for organisms to
use.
14
2/26/2014
$500 Question from H3
What is El Niño?
$500 Answer from H3
Change in water temp in the
Pacific that produces warm current
15
2/26/2014
$100 Question from H4
Define shore currents
$100 Answer from H4
Back and forth movement of water
at the shore.
16
2/26/2014
$200 Question from H4
What is a subsurface current that is near
shore and pulls objects out to sea?
$200 Answer from H4
Undertow
17
2/26/2014
$300 Question from H4
What is this a
picture of?
Describe what
it is happening.
$300 Answer from H4
Longshore Currents –
A water current that
travels near and
parallel to the shoreline
18
2/26/2014
$400 Question from H4
DAILY DOUBLE
How do storm surges happen?
$400 Answer from H4
A rise in sea level near the shore is
caused by strong winds from a storm.
As the storm moves onto water, so
does the mass of water beneath it.
19
2/26/2014
$500 Question from H4
Name 5 causes of tsunamis and
where do many of them occur?
$500 Answer from H4
Earthquakes
Volcanic eruptions
Landslides
Underwater explosions
Impact of meteorite or comet
Pacific ocean because a Large
number of earthquakes caused by
moving tectonic plates
20
2/26/2014
$100 Question from H5
What two things are tides
influenced by?
$100 Answer from H5
Sun & moon.
21
2/26/2014
$200 Question from H5
How do high tides
happen?
$200 Answer from H5
• Moon’s pull strongest on
the part of Earth directly
facing moon.
• Water bulges toward the
moon
• Water on opposite side
bulges too due to Earth’s
rotation
High tides
low tides
22
2/26/2014
$300 Question from H5
Does the sun have more or less effect on
tidal variations? Why or why not?
$300 Answer from H5
MUCH larger than the moon,
but MUCH farther away
Less powerful force
23
2/26/2014
$400 Question from H5
Describe the position of the earth,
moon, and sun during neap tides.
$400 Answer from H5
Sun, Earth, & moon form 90o angle
24
2/26/2014
$500 Question from H5
Describe the position of the earth,
moon, and sun during spring tides.
$500 Answer from H5
• When moon is between sun
and earth
• And when moon and sun are
on opposite sides of the earth
25