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Eighth Grade (Grade 8) Oceanography and Hydrology Questions

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Grade 8 Oceanography and Hydrology
Most tsunamis are caused by which of the following?
  1. meteors
  2. underwater earthquakes
  3. hurricanes
Grade 8 Oceanography and Hydrology
Why does the gravitational force of the Moon on Earth’s oceans is stronger than the gravitational force of the Sun?
  1. Moon’s air resistance keeps it from moving.
  2. Moon is smaller than the Sun.
  3. the Sun is made only of gas.
  4. Moon is closer to Earth than the Sun.
Grade 8 Oceanography and Hydrology
Earth's surface is about what percentage water?
  1. 60%
  2. 25%
  3. 70%
Grade 8 Oceanography and Hydrology
Point C on the diagram best depicts which of these geologic processes?
Meandering River
  1. erosion
  2. lithification
  3. subduction
  4. metamorphism
Grade 8 Oceanography and Hydrology
What is NOT a part of the water cycle?
  1. condensation
  2. evaporation
  3. transpiration
  4. bacteria
Grade 8 Oceanography and Hydrology
The process of a                 changing into a                 is called evaporation.
  1. gas; liquid
  2. liquid; solid
  3. liquid; gas
  4. gas; solid
Grade 8 Oceanography and Hydrology
Tides that produce the least difference between consecutive high and low tides are called
  1. neap tides.
  2. spring tides.
  3. fall tides.
  4. full tides.
Grade 8 Oceanography and Hydrology
The water found in the space between rock particles below Earth's surface is called                .
  1. groundwater
  2. water table
  3. spacewater
  4. surface water
Grade 8 Oceanography and Hydrology
What is defined as a natural flow of groundwater to Earth's surface?
  1. Spring
  2. Well
  3. Aquifer
  4. Water table
Grade 8 Oceanography and Hydrology
Movements of ocean water far below the surface is called                .
  1. surface current
  2. deflection
  3. deep current
  4. coriolis effect
Grade 8 Oceanography and Hydrology
The oceans' surface currents are caused by the                .
  1. upwelling
  2. tombolo
  3. winds
  4. tide
Grade 8 Oceanography and Hydrology
What have scientists used to map the ocean floor?
  1. a map
  2. submarines
  3. sonar
  4. drilling
Grade 8 Oceanography and Hydrology
Water on Earth's surface is called                . It can be found in lakes and streams.
  1. salt water
  2. groundwater
  3. surface water
  4. drinking water
Grade 8 Oceanography and Hydrology
The oceans' tides are mostly caused by the gravity of the                .
  1. tide
  2. moon
  3. winds
  4. upwelling
Grade 8 Oceanography and Hydrology
The maximum sea level of the rising ocean is called its                .
  1. high tide
  2. neap tide
  3. spring tide
  4. low tide
Grade 8 Oceanography and Hydrology
When water changes into water vapor this is called                .
  1. condensation
  2. transpiration
  3. precipitation
  4. evaporation
Grade 8 Oceanography and Hydrology
The force that causes water to move is                .
  1. storms
  2. gravity
  3. the ocean
  4. deposition
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