Show:
Surface Currents
Deep Currents
Cause & Effect
Electricity
Transformations
100
The British Isles are warmed by the Gulf Stream current. This type of heat transfer through water is called:
convection
100
What kind of ocean water is more dense?
salty water OR cold water
100
Kelp are giant seaweeds that grow in clear, shallow coastal waters. They grow long, leafy blades that provide a habitat for eels, sponges, sea stars, and sea otters. Kelp require cold, nutrient rich water and light in order to survive. What ocean process supports the kelp forests?
upwelling
100
What materials such as metals allow electrons to pass easily?
conductors
100
What transformer changes chemical energy into mechanical energy and thermal energy?
a human, a warm-blooded (ectothermic) animal or a automobile
200
The British Isles are at a high latitude but still have a mild climate. Why does this occur?
The Gulf Stream is a warm current and flows to western Europe.
200
What is the cause of the flow of deep currents?
density
200
What energy transformer causes a classroom clock to change electricity into mechanical energy?
motor
200
What is the energy transformation for a battery?
chemical energy --> electricity
300
What are 3 factors that most directly affect the direction of the Gulf Stream?
wind, Coriolis effect, continental deflection
300
What two factors determine the density of deep ocean water?
temperature and salinity
300
A longshore current moves fown a sandy coastline, north to south. Developers build a concrete breakwater at on point along the coast. What will occur to the north and south of the breakwater?
Sand will build up (accumulate) north of the breakwater; sand will erode south of the breakwater.
300
What electric charge do electrons have?
negative
300
What changes electricity into light and sound?
an alarm clock
400
How do convection currents affect surface currents?
Sunlight heats air forming strong winds that push currents.
400
Deep currents of the world are sometimes referred to as a:
conveyor belt
400
What makes water near Greenland and Antarctica more salty than other ocean water?
When ocean water freezes into ice, salt is squeezed out into the water. All ice is fresh.
400
How many electrodes does a battery have?
2: a negative and positive electrode (pole)
400
What transformer changes EM waves into chemical energy?
plants
500
What two terms describe the California current?
cold and longshore
500
NOAA buoys along the equator lead to scientists responding to changes in the ocean. What data do they measure that causes this to occur?
surface temp., air temp. currents, wind
500
What is the composition of the rod that is in the center of most batteries solid batteries?
carbon
500
Give an example of each potential energy.
.