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Eighth Grade (Grade 8) Oceanography and Hydrology Questions

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Grade 8 Oceanography and Hydrology
What happens at a spring tide?
  1. There is only one high tide each day.
  2. There is the most difference between consecutive high and low tides.
  3. There is only one low tide each day.
  4. There is the least difference between consecutive high and low tides.
Grade 8 Oceanography and Hydrology
About how long passes between high tides in most coastal areas?
  1. 6 hours
  2. 12 hours
  3. 24 hours
  4. 48 hours
Grade 8 Oceanography and Hydrology
The minimum sea level of the falling ocean is called its                .
  1. neap tide
  2. low tide
  3. high tide
  4. spring tide
Grade 8 Oceanography and Hydrology
What is an oceanic trench?
  1. The bottom of the ocean where little light penetrates therefore there is very little life
  2. The large flat region of the open ocean floor
  3. A deep canyon in the ocean floor
  4. A steep incline leading down from the edge of the continental shelf
Grade 8 Oceanography and Hydrology
When plant leaves give off water vapor this is called                .
  1. condensation
  2. transpiration
  3. precipitation
  4. evaporation
Grade 8 Oceanography and Hydrology
Where the water table is at or near or above the land surface.
  1. vegetative buffer
  2. wetland
  3. estuary
  4. ecological footprint
Grade 8 Oceanography and Hydrology
The bottom of a wave is called its                .
  1. stack
  2. trough
  3. tsunamis
  4. wind
Grade 8 Oceanography and Hydrology
Most sediment is transported by                .
  1. wind storms
  2. gravity
  3. dump trucks
  4. moving water
Grade 8 Oceanography and Hydrology
What is the upper boundary of the zone of saturation called?
  1. alluvial plain
  2. evaporation
  3. nitrates
  4. water table
Grade 8 Oceanography and Hydrology
When water vapor condenses on particles of dust in the air this is called                .
  1. condensation
  2. transpiration
  3. precipitation
  4. evaporation
Grade 8 Oceanography and Hydrology
                is measure of the amount of water vapor in the air.
  1. Smoke
  2. Fog
  3. Humidity
  4. Evaporation
Grade 8 Oceanography and Hydrology
The saltiness of the ocean is called its                .
  1. mudslide
  2. salinity
  3. tide
  4. winds
Grade 8 Oceanography and Hydrology
Continents don't affect the ocean currents.
  1. True
  2. False
Grade 8 Oceanography and Hydrology
These stretches of ocean floor are likely the flattest surfaces on Earth.
  1. continental shelf
  2. mid-ocean ridges
  3. abyssal plains
  4. desserts of the Sahara
Grade 8 Oceanography and Hydrology
The image shows landforms and water bodies. Letter F represents a river.
Major Landforms
Which best describes why water flows in the river?
  1. blowing winds
  2. seismic activity
  3. gravitational force
  4. convection currents
Grade 8 Oceanography and Hydrology
Where does water in a storm drain flow to?
  1. fields
  2. waste water treatment plant
  3. aquifer
  4. river or stream
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