WorksheetsMarine - Sem. 1 exam pt. 1
Total questions: 33
Worksheet time: 17mins
What is the label 1
Hydrogen atom
Oxygen atom
Hydrogen bond
Covalent bond
What is the labeled 4
Hydrogen atom
Oxygen atom
Hydrogen bond
Covalent bond
Water can form droplets because water sticks to water, this property is called
Cohesion
Adhesion
High Heat Capacity
Universal solvent
Water can travel up the roots/stems of plants because water can stick to other things, this property of water is called
Cohesion
Adhesion
High Heat Capacity
Universal Solvent
Water is able to prove sea creature with a stable environment because it can absorb lots of heat without changing temperature, this property is called
Cohesion
Adhesion
High Heat Capacity
Universal solvent
Water is good at dissolving things like salt, allowing it to create saltwater, this property of water is called
Cohesion
Adhesion
High Heat Capacity
Universal Solvent
Which of the following is a solute
Water
Sugar
Juice
Glass
What do we call the mixture of a dissolved solid and the liquid it dissolved into?
Solute
Solvent
Solution
Equation
The ice layers which form on top of Arctic waters protect aquatic life by insulating the water beneath from the extreme cold temperatures. Which property of water contributes to the formation of this ice barrier?
ability to absorb heat and not change temperature
expansion of water as it freezes
cohesion
versatility as a solvent
Which is warmer, 10 degrees Celsius or 10 degrees Fahrenheit?
Celsius
Fahrenheit
When setting up an aquarium it is important to include an air pump or air stone in order to...
Infuse oxygen into the water
Filter out carbon dioxide from the water
Reduce the amount of oxygen in the water
Increase the density of the water
Which of the following does not increase as we go deeper into the ocean
Temperature
Pressure
Salinity
Speed of sound
Which of the following does not decrease as we go deeper into the ocean
Light
Temperature
Dissolved Oxygen
Speed of Sound
Which of these tools uses sound to map the sea floor
Secchi disk
SCUBA
SONAR
Refractometer
Which of these is a submersible (like a submarine) that can go down deep into the water
Seine
Bathysphere
SCUBA
SONAR
Which of the following measures salinity based on how light bends through a water sample
Bathysphere
Refractometer
Seine
Secchi Disk
Which of these is used to catch things like fish and have a lead line and float line to keep it vertically spread
Seine
Secchi Disk
Hydrometer
SONAR
Which of these tools is used to measure the turbidity or cloudiness of water
SCUBA
Hydrometer
Secchi Disk
Plankton net
Which of these is a measure of how compact or thick the water is
Turbidity
pH
Density
Temperature
What do we call the measure of how salty the water is
Salinity
Turbidity
pH
Temperature
What do we call the measure of how clear/cloudy the water is
Salinity
Turbidity
pH
Temperature
Why do sound waves travel faster is water than in air?
Because there are less obstacles underwater
Because water molecules are close together and therefore transfer vibrations easier
Sounds travel better in the larger spaces between water molecules compared to compact air molecules
There are less competing sounds underwater
Water molecules naturally want to flow towards the area with more solutes to dilute the sample and reach equilibrium
True
False
What is the difference between climate and weather?
Weather is long-term
Climate is more harsh
Climate changes daily
Climate is long-term
Which marine zone is expected to have the lowest rates of primary productivity (photosynthesis)
photic
aphotic
shallow benthic
pelagic
Which zone produces the most global oxygen
Intertidal
Benthic
Pelagic
Photic
In regards to the mid-ocean ridge, the oldest rocks would be found
closest to land
closest to the ridge
half way between the ridge and land
rock age doesn't change with location
Trenches form when two tectonic plates collide and one is forced under the other, this is called
Deduction
Subduction
Diverging plates
Shearing plates
The bends is an ascent injury that results in an air embolism/ bubble in the blood stream that forms because of
rapid decrease in pressure
rapid increase of pressure
rapid change in temperature
increase in air in the lungs
On a pH scale the lower numbers (1-6) are called
basic
acidic
neutral
alkaline
Circular currents in the world's oceans are called
longshore currents
convection currents
gyres
estuaries
Global warming lowers the pH of the ocean, this affects shell-building animals because calcium carbonate decreases in
acidic seawater
basic seawater
carbonated seawater
evaporated water
How can new evidence change science over time
New evidence is detrimental to new theories
New evidence leads to changes in scientific knowledge & new theories
new evidence can change knowledge but not theories
theories cannot be trusted because they always change
