pwc Westgate 5th grade Oceanography Unit
Terms
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I HAVE.... the scientific study of the oceans.
WHO HAS....What percentage of the Earth's surface is covered by oceans? -
I HAVE... 75% of the Earth's surface
WHO HAS.... What is the Continental Shelf? -
I HAVE.... the shallow part of the ocean floor that is close to the edge of the continent.
WHO HAS.... Where is the continental slope located? -
I HAVE.... is located from the edge of the continental shelf descending to the deep water of the ocean basin.
WHO HAS.... What is the Ocean Basin? -
I HAVE.... the ocean's floor
WHO HAS....What is the Continental Rise? -
I HAVE.... it is the gently sloping area made of sediments washed down from the slope.
WHO HAS.... What is the Mid-ocean ridges? -
I HAVE,... UNDERWATER MOUNTAIN RANGES
WHO HAS... WHAT ARE OCEAN TRENCHES? -
I HAVE.... deep narrow valleys in the ocean floor.
WHO HAS.... What are the seven physical characteristics that can be used to describe the ocean environment and ocean water? -
I HAVE.... AREA, depth, salinity, mineral content, currents, waves and tides.
WHO HAS....Is the salinity the same in each ocean? -
I HAVE.... no, the salinity is different in some places.
WHO HAS.... What causes the change in salinity? -
I HAVE.... rates of evaporation, rain, and runoff from near by land affects salinity.
WHO HAS.... What causes ocean currents? -
I HAVE.... wind patterns and the differences in water temperature and salinity levels.
WHO HAS.... Name three things that are affected by currents. -
I HAVE..... navigational routes, plant life and animal populations are affected.
WHO HAS...What happens as the depth of the ocean water increases? -
I HAVE,.... as ocean water increases, the temperature decreases, the pressure increases and the amount of light decreases.
WHO HAS....Wat are the 3 terms used to describe living organisms in the ocean? -
I HAVE.... plankton, nekton and benthos are terms of living organisms.
WHO HAS.... What is Plankton? -
I HAVE.... ORGANISMS THAT DRIFT OR FLOAT ON THE TOP OF THE OCEAN WATER.
WHO HAS..... There is how many classes of Plankton...name them? -
I HAVE.... two classes of plankton...called zooplankton and phytoplankton
WHO HAS.... What is phytoplankton? -
I HAVE.... PLANKTON THAT ARE PLANTS
WHO HAS.... What is ZOOPLANKTON? -
I HAVE.... includes the animals that can swim and control their movements.
WHO HAS....What is Benthos? -
I HAVE.... organisms that live in or on the ocean's bottom.
WHO HAS... Name the ocean's natural resources? -
I HAVE.... FOOD, FOSSIL FUELS, MINERALS, ORES AND SALT
WHO HAS... Why is it important to protect the ocean? -
I HAVE.... the ocean is full of natural resources as well as wildlife that must be protected.
WHO HAS...What can humans due to protect the ocean and it's ecosystems? -
I HAVE....humans can pass laws that prevent killing of endangered ocean species, and that prevent pollution of the ocean waters.
WHO HAS....What are the two chemicals that make up salt? -
I HAVE.... sodium chloride = salt
WHO HAS....What percent of the ocean water is salt? -
I HAVE... 86% SALT WATER
WHO HAS....What are the 3 factors that influence life forms in the ocean? -
I HAVE.... temperature, pressure and the amount of light.
WHO HAS....How does the Gulf Stream affect the nearby land? -
I HAVE.... IT produces warm winds and a mild climate for the near by land.
WHO HAS...What is the most abundant mineral in the ocean? -
I HAVE... salt
WHO HAS...What causes the differences in the ocean currents? -
I HAVE.... water temperature causes differences
WHO HAS.... What causes the difference in density in the ocean? -
I HAVE.... deep ocean currents cause the differences in density
WHO HAS... Why is the continental plain flat? -
I HAVE.... The pressure of sediments cause the continental plain to be flat
WHO HAS.... What causes tides? -
I HAVE.... THE Sun and the Moon's gravitational force.]
WHO HAS....Why do waves form? -
I HAVE.... winds blowing over the water's surface.
WHO HAS.... What happens to the temperature, salinity and nutrient level of deep ocean water? -
I HAVE.... the temperature is about 4 degrees, the salinity increases to almost 3.3% and the nutrient level is very low.
WHO HAS....Why is the Continental Shelf high in marine life? -
I HAVE.... sunlight helps the continental shelf be plentiful in marine life.
WHO HAS....What would happen to all marine life if algae were to totally die out? -
I HAVE.... because algae is the bottom of the food web, all other marine life would die
WHO HAS.... Where does most of the pollutants of the ocean come from? -
I HAVE..... Most pollution starts on land.
WHO HAS.....What must all living marine organisms that live close to shore do to survive? -
I HAVE.....THE marine life must constantly adjust to its changing conditions.
WHO HAS...What is Oceanography? -
I HAVE..... plankton that are animals.
WHO HAS....Which organism produces most of the Earth's oxygen and serves as the base of the oceans' ecosystems? -
I HAVE.... phytoplankton produces most of the Earth's oxygen
WHO HAS...What is Nekton?