1a /1b

Multiple Choice

What is label G

• Trench
• Mid ocean ridge
• abyssal plain
• sea mount

Multiple Choice

Scientists use ______ to map the ocean floor

• radar

• pulsar

• lidar

• sonar

Multiple Choice

What is label D

• Trench

• Mid ocean ridge

• abyssal plain

• sea mount

Multiple Choice

What is the process happening at G?

• Deep ocean trench

• mid ocean ridge

• subduction

• creation of new sea floor

Multiple Choice

The material that is rising up from the mantle to form new ocean crust is called?

• Lava

• Slate

• Sedimentary Rocks

• Magma

Multiple Choice

New crust is always formed at the...

• mid-ocean ridge
• deep-ocean trench
• asthenosphere

Multiple Choice

In the Atlantic ocean, where is the youngest seafloor located?

• Towards the edges, near the eastern and western continents
• Towards the middle of the ocean
• Towards the north and south poles
• Young seafloor is located randomly throughout the ocean

Multiple Choice

How is it possible for new crust to be formed without increasing the surface area of the Earth?

• Crust is recycled in subduction zones at the same time it is created at mid-ocean ridges

• New crust is underwater where it sinks

• New crust breaks more easily than old crust

• The oldest crust just breaks apart as the plates move

Multiple Choice

Rock at the mid ocean ridges...

• is the oldest rock on the earth.

• is older than continental rock.

• is younger than continental rock.

Multiple Choice

Seafloor spreading...

• creates new oceanic crust

• destroys or recycles crust

• creates new continental crust

• creates old crust

Multiple Choice

The average density of continental crust is 2.8 g/cm³ and the average density of oceanic crusts is 3.2 g/cm³. If these two plates came together, what would happen?

• The two plates would push apart and form a rift zone.

• The oceanic plate would rise up over the continental plate.

• The oceanic plate would sink under the continental plate.

• The two plates would meet head on and rise up to form mountains.

Multiple Choice

Where would the oldest rock be found?

• L
• M
• N
• O

Multiple Choice

The San Andreas Fault in California is known as an active earthquake area. What type of boundary is it?

• Converging

• Diverging

• Transform

• Sea Floor Spreading

Multiple Choice

Passive continental margins are known for having a lot of earthquakes and active volcanoes

• True

• Fasle

Multiple Choice

Transform boundaries are most likely to produce what phenomenon?

• volcanoes
• deep sea trenches
• underwater mountain ranges
• earthquakes

Multiple Choice

As the depth of the ocean water increases, the temperature...

• increases (warmer)

• decreases (colder)

Multiple Choice

The landforms of the ocean are different than the ones on land

• True

• false

Multiple Choice

This part of the ocean floor is relatively shallow water and surrounds land.

• Continental Drift

• Continental Slope

• Continental Shelf

• Continental Breakfast

Multiple Choice

Where are you walking when you are wading in the ocean?

• Ocean Trench

• Abyssal Plain

• Continental Slope

• Continental Shelf

Multiple Choice

The steep slope where the continental shelf drops to the ocean floor is called the...

• Continetal drop

• Ocean ridge

• Oceanic slope

• Continental Slope

Multiple Choice

The gently sloping transition between the continental slope and the deep ocean floor is called the...

• Oceanic Trenches

• Seamounts

• Continental Rise

• Continental Drop

Multiple Choice

What is letter C pointing to? 

• abyssal plain
• seamount
• mid-ocean ridge
• continental shelf

Multiple Choice

Which letter is pointing to a trench?

• A
• D
• G
• B

Multiple Choice

What is the deepest part of the ocean?

• Abyssal Hill

• Oceanic Crust

• Ocean Trenches

• Volcano

Multiple Choice

Letter D is pointing to the...

• continental slope
• continental shelf
• trench
• mid-ocean ridge

Multiple Choice

A mountain that rises above the ocean floor but stays below the surface of the water is called ...

• Sea Hills

• Oceanic Crust

• Continental Shelf

• Seamount

Multiple Choice

An underwater volcano that eventually forms an island is an.....

• Mid-Ocean Ridge

• Volcanic Island

• Hawaii

• None are correct

Multiple Choice

Identify #3 and #9

• Continental shelf

• Continental slope

• Continental rise

• Seamount

• Rift Valley

Multiple Choice

Identify #1 and #11

• Continental shelf

• Continental slope

• Continental rise

• Seamount

• Rift Valley

Multiple Choice

What is the steep slope at the edge of the continental shelf?

• seamount
• mid-ocean ridge
• continental slope
• rift zone

Multiple Choice

Where is the shallowest part of the ocean floor?

• continental slope
• continental shelf
• abyssal plains
• rift zones

Multiple Choice

Which landform is represented by letter A?

• continental shelf
• continental slope
• abyssal plain
• trench

Multiple Choice

Identify #4 and #8

• Continental shelf

• Continental slope

• Continental rise

• Seamount

• Rift Valley

Multiple Choice

Identify #5 and #7

• Continental shelf

• Abyssal plain

• Continental rise

• Seamount

• Rift Valley

Multiple Choice

Heat breaks the hydrogen bonds

• True

• False

Multiple Choice

Which letter indicates where water is in both the solid and liquid phase at the same time?

• A

• B

• C

• D

• E

Multiple Choice

Which property explains why ice floats?

• adhesion

• density

• cohesion

• heat capacity

Multiple Choice

A high specific heat means...

• It heats up quickly with energy added
• It requires more energy to change temperature

Multiple Choice

The amount of energy required to raise the temperature 1ºC for every kilogram is called____?

• Thermal Energy
• Specific Heat
• Temperature
• Kinetic Energy

Multiple Choice

Water has a low rate of vaporization which is why there is a lot of ocean water

• True

• False

Multiple Choice

Water is a universal solvent

• True

• False

Multiple Choice

Ocean salinity is approx....

• .35%

• 35%

• 3.5%

Multiple Choice

What would cause a body of water to have a higher salinity?

• decreasing condensation

• increasing transpiration

• increasing evaporation

• decreasing evaporation

Multiple Choice

As we go deeper into the ocean, salinity ___________. 

• Doubles
• Decreases 
• Increases
• Remains the same 

Multiple Choice

______ causes deep ocean currents

• The Coriolis Effect

• gravity

• wind

• density differences

Multiple Choice

What process brings the deep cold ocean currents up to the surface?

• Conduction
• Global Wind Patterns
• Convection Currents
• Temperature and salinity

Multiple Choice

In addition to salinity, what factor affects the density of seawater?

• depth
• latitude
• temperature
• salt content

Multiple Choice

Why are surface currents at the surface of the ocean?

• colder temperature
• colder temperature & more salinty
• warmer temperature & less salinty
• less salinty

Multiple Choice

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

Multiple Choice

When a molecule has an opposite electrical charge on each end, it is known as what?

• cohesion
• polar molecule
• hydrogen bond
• solution

Multiple Choice

How much of Earth's water is salt water?

• 50%
• 66%
• 75%
• 97%

Multiple Choice

How much of Earth's water is available to drink?

• 2%

• 12%

• 1%

• 97%

Multiple Choice

The ability of water molecules to stick to each other, creating surface tension is called:

• Cohesion

• Adhesion

• Insulation

• Ph

Multiple Choice

The fact that water can stick to other substances is called:

• Ph

• Adhesion

• Cohesion

• Insulation

Multiple Choice

Water is a universal solvent because it...

• It can be found anywhere
• It freezes when it gets cold
• floats when frozen
• Dissolves most substances

Multiple Choice

When water molecules stick easily to other water molecules, this is called what?

• cohesion
• adhesion
• solution
• polar molecule

Multiple Choice

Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?

• Water is an acid.
• Water is a versatile solvent.
• Water has a high heat capacity.
•  Water acts as a buffer.

Multiple Choice

Why does ice float?

• As water freezes, it expands and its density decreases.
• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
• As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
• As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

Multiple Choice

This molecule structure is

• Ice

• Water

• Vaporized water

Multiple Choice

This molecule structure is

• Ice

• Water

• Vaporized water

Multiple Choice

This molecule structure is

• Ice

• Water

• Vaporized water

Multiple Choice

Colder water rises

• True

• False

Multiple Choice

Warmer water is less dense than cold water

• True

• False

Multiple Choice

Currents are essential to life in the ocean

• True

• false

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