the purpose of the voyage
to study humpback whales
what is oceanography?
the study of earth’s oceans
what are the oceans?
Pacific, Atlantic, Indian, Arctic, and Atlantic
the foward-most part of the boat or ship that is used as sleeping quarters
a scientist who specializes in animals and plants that live in the ocean
scientist who studies the physical characteristics of the earth’s oceans
left side of the boat
right side of the boat
a large cabin on a boat used for general purposes
everything surrounding and affecting a living thing
particular surrounding where an organism lives
the process of gradual change by which organisms adapt to their environment
an animal with distingusihing characteristics who nurse their young and have hair
the average ocean depth
the deepest ocean depth
7 miles:the Marina Trench
the ocean provides us with
food and steady temperature and climate in a particular area
how much heat is collected by the ocean?
when is warmth released?
how much seafood is taken from the sea each year?
84 million tons
what are 3 reasons humans can’t survive under water?
temperature, air, and pressure
when a whale leaps almost completely out of thw water and flops back down
when a whale slaps its fluke on the surface of the water
flat part of a whale’s tail
fin on the back of a whale
a sail set on a rope
to secure a rope by winding it around something like a hook
platform used as a lookout
a rope used to raise or lower a sail
a rope used to gather a sail not in use
what size were the first whales?
what type of groups do whales travel in?
a material that grows from the upper jaw of some whales; it’s used to filter food from the water
whale with baleen
whale with teeth
tough wartlike growth on the head of right whales
whales are called
the two groups of cetaceans
mysticetes and odontocetes
considered the most endangered whale
what made the right whale easy to hunt?
slow moving, very trusting, floated when killed, and provided large amounts of oil
why do whales travel to the caribbean during winter?
because of warm waters
why do whales travel North in the summer
because they haven’t eaten for 4 months
what makes the ocean salty?
what’s the number one mineral?
a measure of the amount of dissolved salts and other solids in a given amount of liquid
what increases salinity?
what type of weather makes evaporation occur quickly?
What are the temperate zones?
Surface, Thermocline, and Deep
How far does Surface go to?
up to 300 m
How far does Thermocline go to?
How far does Deep go to?
700 m-ocean floor
underwater research vehicles
1st submersible was:
mini sub, used to research sunken ships and landforms
was an underwater airplane
sound navigation and ranging
What does SONAR do?
calculates ocean depths
How fast does sound travel through water?
1500 m/ sec
what is the formula for SONAR?
wave is sent from boat, hits and bounces off ocean floor, then wave returns to boat
How do you find the ocean depth?
divide the seconds by two and then multiply it by 1,500