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WorksheetsMid-Term Exam (2 semester courses)
Total questions: 50
Worksheet time: 2hrs 40mins
Flammable materials, like alcohol, should never be dispensed or used near
an open door
an open flame
another student
a sink
Never leave a lit burner unattended.
True
False
A nonliving element in an ecosystem is a/an ---
biotic factor.
abiotic factor.
Is sunlight an abiotic or biotic factor?
abiotic
biotic
True of False: The temperature of the ocean water decreases as the depth of the water increases.
True
False
A collection of organisms that make up a community as well as all of the nonliving aspects of the environment.
Population
Community
Habitat
Ecosystem
Salinity is described as -
The plant life of in the ocean
The variety of organisms in the ocean
The pH of the ocean
The saltiness of the ocean
The vast majority (over 95%) of aquatic ecosystems are made up of this type of environment.
Freshwater
Brackish water
Marine (saltwater)
Bottled water
This ecosystem is where freshwater and saltwater meet.
Ponds
Rivers
Esturaies
Deep Ocean Abyssal Plains
Intertidal ecosystems are submerged during high tide and exposed during low tide.
True
False
Take a look at the photo and decide which answer fits.
Kelp Forest
Coral Reef
Rocky Seashore
Sandy Beach
Take a look at the photo and decide which answer best fits.
Kelp Forest
Rocky Seashore
Coral Reef
Freshwater Bog
Take a look at the photo and decide which answer best fits.
Kelp Forest
Coral Reef
Open Ocean
Esturay
Ocean acidification is a result of an increase of which of the following elements?
Nitrogen
Carbon
Sulfer
lead
What does DO stand for?
Dissolved oxygen
Dissolved osmium
Dissolved ozone
The Photic Zone (Sunlight Zone) houses 90% of life in our oceans. Why?
Phytoplankton (base of the food chain) conducting phtosynthesis
Apex predators (top of the food chain) consuming large marine organisms
Most ocean life tends to float to the top layer of the ocean
This is a great place for fish to hide from predators
As saltwater evaporates in a tide pool what happens to the salinity level of that water?
decreases
stays the same
increases
Depending on the surrounding soil and bedrock most lakes, ponds, and streams have a pH of:
6 to 8
0 to 1
13 to 14
Exactly 7 Always!
The arrows in a food chain or web represents what?
They point to the organism that is being eaten.
It shows how sunlight flows within an ecosystem.
They show what direction the energy is flowing between organisms.
They represent how water is transferred within a habitat.
Apex Predator
Primary Producer
Primary Consumer
All of these are primary consumers
How much of the world's water supply is freshwater?
97%
1%
3%
100%
Eutrophication is caused by
excess nutrients building up in the water.
industrial point-source pollution.
unlined landfills and septic tanks.
wastewater from homes mixing with drinking water.
How does eutrophication cause the death of aquatic organisms
the build up of carbon dioxide in the water
the lack of nitrogen in the water
the lack of carbon dioxide in the water
the lack of oxygen in the water
When salt and fresh water mix, what is the new water substance called?
Brackish Acid
Fresh Water
Salt Water
Brackish Water
What are some plants you might find in an estuary?
What does it mean to be sustainable?
The ability to be maintained at a certain rate or level
Avoidance of the depletion of natural resources in order to maintain an ecological balance
The process can be maintained at a certain level for as long as wanted
All of these are correct
Select a bivalve you might find in an estuary that acts as a filter feeder.
oyster
gold fish
swedish fish
coral
Kelp, Seaweed, Phytoplankton and algae do what to oceans.
Provided food for crabs
use chemicals to make energy called chemosynthesis
are heterotrophs that make their own food using sunlight
Are autotrophs that make their own food during photosynthesis
Cold salt water and hot salt water were added to the cup. Which layer represents the cold salt water?
The bottom blue layer
The top red layer
Neither
What is the name of the warm ocean current that creates a mild climate for the Gulf Coast?
California Current
Gulf Stream Current
East Australian Current
Peru Current
______ cause surface currents.
The Coriolis Effect
gravity
density differences
Surface wind patterns
Nutrients are brought to the surface for phytoplankton to use at _______.
gyres
eddies
upwellings
the equator
Movements of ocean water in a continuous flow are called?
ocean currents
global winds
air mass
front
The two main parts of a wave are_____
Wavelengths and wave heights.
Swells and whitecaps.
Crests and troughs.
Rises and dips.
In a wave, water does not move, _____________ moves.
Water
Energy
Waves
Fish
The movement of wind and water caused by Earth's rotation is called ________.
Waves
Coriolis Affect
Geysers
The atmosphere
Which picture depicts ocean currents around the world?
What can cause a wave in the ocean?
Wind
Earthquake
Volcanic Eruption
Landslide
All of Theses can cause waves
True or False : Sea-floor Spreading adds new material to the ocean floor?
True
False
What is a divergent boundary?
two plates moving towards each other
two plates rubbing side to side
two plates moving away from each other
happens in the lithosphere
What is the process happening at R?
Deep ocean trench
mid ocean ridge
subduction
sea floor spreading
When a free diver swims deeper into the ocean what happens to the air in their lungs?
It is forced out of the body through sweat pores
compressed (squeezed) into their bloodstream
it is all blown out through their mouth
trapped in the divers stomach
The force water exerts on an object that makes them feel lighter.
Gravity
Normal Force
Buoyant Force
Friction
What do fish use to keep them from sinking to the bottom of the ocean?
Lungs
Seaweed
Swim Bladder
Little Life Jackets
Water has a density of 1 gram per cubic centimeter. Objects with a density greater than that will:
sink
float
explode
