Download Basins Review sheet

Name: _______________________________________________ Pd.: ________ Date: ______________________
Ocean Basins Review
How Sonar Works:
Label the oceans on the diagram above.
A: ____________________________
B: ____________________________
C: ____________________________
Three Major Oceans
 _________________ – the shallowest ocean
(_______km average depth)
 _________________ – second shallowest ocean
(_______km average depth)
 _________________ – the deepest ocean
(_______km average depth)
Seas
 What is a sea? a small area of the ocean that is
partially ____________________ by land.
 The Seven Seas – there are numerous seas and they
are all considered part of an ___________________.
Exploring our Oceans
 ___________________________ is the study of the
________________ characteristics, _______________
composition and life forms of the ocean.
What are Submersibles? - Underwater research
vessels such as ________________________ and
__________________________
SONAR
 Important to help _________ ocean floor
 ____und __avigation __nd __anging
Features of the Ocean Basins
(As each feature is described, label it on the diagram on
the back of this sheet)
 ____________________ ____________: portion of
ocean made up of continental crust
 ____________________ ____________: flat part of
continental margin covered by shallow ocean water
(formed by changes in sea level – avg. depth of 60m)
 ____________________ ____________: boundary
between continental crust and oceanic
 ____________________ ____________: deep, vshaped valley that cuts through shelf & slope
 ____________________ ____________: wedge of
sediments that separates slope from ocean floor
 _______________ _____________: large flat area
on the ocean floor
 ___________________: underwater volcanic
mountain (1000m)
 ______________: a flat-topped submerged
seamount
 ______________: deep narrow valleys along the
edges of ocean floor (Marianas Trench in Pacific ocean
is 36,000 ft deep, 6 miles – deepest point on Earth)
 _______ – ____________ _____________: mountain
range on ocean floor
 ________ ___________: deep crevice in between
mountain ranges
 _____________ _________: limestone structures
containing shells of animals that surround volcanic
islands
Features of the Ocean Basins