Study

4th Grade Oceans

  •   0%
  •  0     0     0

  • Warm water will _______ cold water.
    Float over
    Sink below
    Mix with
  • Which location would have the greatest salinity?
    5
    2
    1
    3
  • 2
    gentle slope- most ocean organisms live here
    where the land ends and the ocean begins
    "true" ocean floor- no light reaches here
    steep slope down to the ocean floor
  • Which statement is true about this graph?
    The tide is lower at 3 pm on Monday than 6 pm on Monday
    The tide is higher at 9 pm on Monday than 9 am on Tuesday
    The tide is higher at 12 pm on Monday than 3 pm on Tuesday
    The tide is lower at 3 am on Monday than 3 am on Tuesday
  • The ocean floor is covered in _____________.
    Sediment
    Gravitational Pull
    Currents
    Tides
  • 1
    steep slope down to the ocean floor
    Where the land ends and the ocean begins
    gentle slope- most ocean organisms live here
    the "true" ocean floor- no light reaches here
  • How much salt is in a body of water
    density
    food web
    salinity
    producer
  • 3
    "true" ocean floor- no light reaches here
    steep slope down to the ocean floor
    Gentle slope- most ocean organisms live here
    where the land ends and the ocean begins
  • Over the past 50 years, crab populations are declining. In order for them to not go extinct, they need to-
    Make their own food
    Live in high salinity areas
    Eat producers to get energy
    Stay in low temerature waters
  • Algae needs sunlight to create food. Where would you most likely find algae?
    Oceanic Trench
    Abyssal Plain
    Continental Rise
    Continental Shelf
  • What two conditions make it hard for most oceans organisms to survive deep in the ocean?
    Low water pressure, high salinity
    High temperature, low sunlight
    Low temperature, high water pressure
    Low temperature, high salinity
  • The further down in the ocean, the ____________ organisms there are
    same amount
    less
    more
  • Which statement is true?
    Tides are caused by the moon's gravity
    All sharks are producers
    Currents are caused by high salinity
    The wind is the cause of tides
  • As submarines go down in the ocean, there is an increase in
    water temperature
    water pressure
    light
    organisms
  • 4
    gentle slope- most ocean organisms live here
    "true" ocean floor- no light reaches here
    steep slope down to the ocean floor
    where the land ends and the ocean begins
  • Steep slope down to the ocean floor
    2
    3
    4
    1
  • Density
    The flow of water across the planet
    The amount of salt in a body of water
    How heavy something is
    How an organism creates energy
  • According to this food web, which organism is a producer?
    dogfish
    scallop
    herring
    plankton
  • The deepest part of the ocean is the ____________.
    Continental Rise
    Continental Slope
    Sea Mount
    Oceanic Trench