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You can create printable tests and worksheets from these Grade 7 Oceanography and Hydrology questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

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The rise and fall of water on earth is caused mainly by
1. the moon's gravity.
2. the Earth's tilted axis.
3. the moon's phases.
4. changes in the weather
A delta is made up of sediments
1. deposited at the mouth of a river
2. deposited on the inside of a meander loop
3. deposited at the headwaters of a river
4. deposited on the outside of a meander loop
Ocean currents are caused by
1. winds and earthquakes
2. volcanoes and tides
3. winds and density
4. tides and water density
What is the unit of measurement for ocean water density?
1. $g/(cm^3$
2. $g/m^3$
3. $(kg)/m^3$
4. none of the above
Earth's hydrosphere is best described as the
1. relatively thin layer of rock found above Earth's mantle
2. hot liquid rock located in Earth's outer core
3. very dense rock located in Earth's inner core
4. all of Earth's water
Which of the following factors affect ocean water density?
1. pressure
2. temperature
3. salinity
4. all of the above
What is the process that continually adds new material to the ocean floor called?
1. continental drift
2. subduction
4. earthquakes
What is the process in which a gas changes into a liquid?
1. precipitation
2. condensation
3. evaporation
4. transpiration
Which of the following choices are warning signs of a tsunami?
1. Earthquake
2. Falling and rising water levels
3. Volcano eruptions
4. Meteorite impact
5. All the above

This question is a part of a group with common instructions. View group »

The diagram shows water flow in a meandering river channel. Which of the following best explains why water flows in the river channel?
1. gravitational force
2. energy from the sun
3. differences in water salinity
4. energy from the Earth’s interior