A disturbance seen on the surface of water usually caused by wind
What is a wave?
100
How do we determine wave height?
Measuring the vertical distance between crest and trough.
100
The amount of salt dissolved into a liquid
What is salinity?
100
Plankton must have these two things in order to survive in the ocean.
What are: sunlight and nutrients?
100
This much of the surface of the Earth is covered by oceans.
What is: 70%?
200
These are caused by the gravitational pull of the moon.
What are tides?
200
What do we call a deep narrow valley in the ocean floor?
trench
200
These determine the salinity of ocean water that is near land.
What are: evaporation and run-off?
200
Baleen whales live in areas of the ocean rich with this.
What is: plankton?
200
This part of the ocean floor is the beach where people usually swim.
What is: the continental shelf?
300
This is a warm river of water in the Atlantic Ocean moving north along the East Coast of the United States.
What is the Gulf Stream?
300
Name the 7 continents and 5 oceans.
Continents: North America, South America, Asia, Antarctica, Europe, Australia, Africa,
Oceans: southern (Antarctica), Atlantic, Pacific, Indian, Arctic
300
This is how water with a high salinity compares to water with a low salinity.
What is: more dense?
300
This form of pollution results when farmers try to protect their crops from insects. It washes off into nearby water resources that are eventually dumped into the ocean.
What is: pesticide use?
300
The temperature on land is affected by this.
What is: the temperature of the surface of the ocean near the land?
400
These cause surface ocean currents.
What are: the wind & the rotation of the Earth?
400
How do ocean currents affect earth's climate?
The prevailing winds that cause currents can bring warm temperatures or cold temperatures from other locations which can change climate in different locations.
400
How often do high tides occur?
After high tide, how long will it be until low tide?
every 12 hours
6 hours
400
4 things that help prevent pollution
What are: 1. tougher laws; 2. new scientific discoveries (such as new materials for packaging); 3. recycling; 4. cleanup patrols?
400
The way that waves can form new land
What is: deposition?
500
This causes deep ocean currents.
What is: change in temperature and salinity?
500
These are large volcanoes rising out of the sea floor plains.
What are seamounts?
500
This is what happens to water pressure as you go deeper into the ocean.
What is: increases?
500
Colors or patterns on an animal that help keep them hidden from predators
What is protective adaptation?
500
This produces much of the Earth's oxygen and serves as the base of the ocean ecosystem.