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Sixth Grade (Grade 6) Oceanography and Hydrology Questions

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Grade 6 Oceanography and Hydrology
Approximately what percentage of Earth's water is fresh water?
  1. 97%
  2. 71%
  3. 30%
  4. 3%
Grade 6 Oceanography and Hydrology
Water returns to the sky through                 and evaporation.
  1. precipitation
  2. condensation
  3. conservation
  4. transpiration
Grade 6 Oceanography and Hydrology
Water covers nearly how much of Earth's surface?
  1. two-thirds
  2. one-half
  3. three-quarters
  4. one-quarter
Grade 6 Oceanography and Hydrology
                 are the horizontal movement of water at or near the ocean’s surface.
  1. Deep Currents
  2. Global Winds
  3. Surface Currents
  4. Upwelling
Grade 6 Oceanography and Hydrology
Undersea mountain ranges in the middle of ocean floors are known as                    .
  1. Deep-ocean trenches
  2. Sea-floor spreading
  3. Mid-ocean ridges
Grade 6 Oceanography and Hydrology
The water cycle is used every day of our lives.
  1. True
  2. False
Grade 6 Oceanography and Hydrology
When you look outside and it is raining, the water falling down is in what stage of the water cycle?
  1. condensation
  2. evaporation
  3. precipitation
  4. collection
Grade 6 Oceanography and Hydrology
A rock's ability to let water through it is called
  1. watershed.
  2. well.
  3. porosity.
  4. permeability.
Grade 6 Oceanography and Hydrology
Why are cold water currents more likely to be found in the lower parts of the ocean?
  1. Cold fluids are less dense so they sink.
  2. Warm fluids tend to sink.
  3. Cold fluids tend to rise.
  4. Cold fluids are more dense so they sink.
Grade 6 Oceanography and Hydrology
A lower than normal tidal difference is called a
  1. spring tide.
  2. neap tide.
  3. tidal bore.
Grade 6 Oceanography and Hydrology
A smooth, nearly flat region of the ocean floor
  1. Continental shelf
  2. Abyssal plain
  3. Seamount
  4. Guyot
Grade 6 Oceanography and Hydrology
What is the area where new ocean floor is formed when lava erupts through cracks in Earth’s crust called?
  1. Seafloor
  2. Continental Shelf
  3. Continental Slope
  4. Mid-Ocean Ridge
Grade 6 Oceanography and Hydrology
A meteorologist is tracking a hurricane. To measure the strength of the hurricane he needs to see how frequently waves are forming. He decides the best way to do this is to measure the wavelengths. How would he do this?
  1. Measure from the crest of one wave to the crest of another wave
  2. Measure from the crest of one wave to the trough of another wave
  3. Measure from the crest of one wave to the trough of the same wave
  4. Measure from the trough of one wave to the trough of another wave
Grade 6 Oceanography and Hydrology
When you see clouds forming in the sky, the water above you is forming droplets in what stage of the water cycle?
  1. condensation
  2. evaporation
  3. precipitation
  4. collection
Grade 6 Oceanography and Hydrology
The loss of water by plants is
  1. evaporation.
  2. condensation.
  3. transpiration.
  4. precipitation.
Grade 6 Oceanography and Hydrology
A tide is a                 rise and fall of sea level.
  1. daily
  2. monthly
  3. weekly
  4. yearly
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