The Oceans
Name the worlds oceans.
Pacific, Atlantic, Indian, Arctic and Antarctic
Animals use these adaptive structure to get oxygen from water.
Gills
Hard water
What causes waves?
Steady winds
T or F: The Sun has a stronger pull on the Earth's oceans than the Moon.
False; although the move is smaller, is it closer.
The measure of the amount of salts dissolved in a liquid (like ocean water) is know as this.
Salinity
More than 90% of marine life occurs in this environment.
The Oceans
Water that is safe to drink is called what?
Potable
This is the term used to describe the steady rise and fall of the ocean.
Tides
This difference between high and low tide is called this.
Tidal range
This is a wide open area of the deep ocean.
Abyssal plain
Drifting water animals are called this.
Zooplankton
What does N.I.M.B.Y. stand for?
Not In My BackYard
This kind of current carries large amounts of sediment, they act like rivers or sand.
Longshore currents
This is the term used to describe the distance between the crest of two adjacent waves.
Wavelength
Where do warm currents originate?
Near the equator
Why is most oceanic life found in the top 180m of water?
That's the depts of water that light can penetrate.
What is osmosis?
Diffusion of water across a semi-permeable membrane
T or F: Neap tides occur when the sun and moon are in line.
F: neap tides are the smallest tidal movements and occur when the sun and moon are at right angles to each other
The process by which certain bacteria use chemicals to produce food and oxygen.
Chemosynthesis.
What 3 factors influence the direction of winds and surface currents?
Uneven heating of atmosphere; rotation of the Earth; and the continents.
This is the process by which toxins are magnified in the food chain
Biomagnification
What is a bioindicator species?
A sensitive or important species whose numbers can indicate the health of an ecosystem
Breaker
Why do the largest tidal movements occur when the sun and moon are aligned?
The sun adds its gravitational pull to that of the moon.