WorksheetsScience Benchmark 3-7
Total questions: 25
Worksheet time: 18mins
Name
Class
Date
1.
Where is the majority of Earth’s freshwater located?
a)
ice
b)
groundwater
c)
oceans
d)
lakes
2.
Which will best show lakes, rivers, and streams are healthy?
a)
large amounts of algae
b)
large amounts of nitrates
c)
large amounts of dissolved oxygen
d)
large amounts of decomposers
3.
Which best explains why so little of the water on Earth is available for human use?
a)
97% of total water on Earth is
freshwater, and most of the remaining 3% is salt water in the ocean basins.
b)
97% of total water on Earth is salt
water, and most of the remaining 3% is freshwater found in lakes, rivers, and
ponds.
c)
97% of total water on Earth is salt water, and
most of the remaining 3% is freshwater frozen in ice caps and glaciers.
d)
97% of total water on Earth is
freshwater, and most of the remaining 3% is salt water found in underground aquifers.
4.
Why is upwelling an important process in a marine ecosystem?
a)
Upwelling returns salt to the
surface from the benthic zone as part of the global conveyor belt current.
b)
Upwelling
replaces sand and gravel on beaches lost as the result of wave and tidal
action.
c)
Upwelling
cycles nutrients from decomposers along the ocean floor to producers in
surface waters.
d)
Upwelling decreases the temperature differences
between different layers of ocean water
5.
Which ecosystem difference is most likely true?
a)
The deep
ocean has less sunlight than an estuary.
b)
The deep
ocean has more plants than an estuary.
c)
The deep
ocean has a lower salt concentration than an estuary.
d)
The deep ocean has more concentrated nutrients than an
estuary.
6.
Which is the best predictor of the relative age of a layer of rock?
a)
thickness of the layer
b)
length of the layer
c)
position of the layer
d)
size of the layer
7.
Throughout Earth’s history, there have been fractures in rock formations caused by shifting of the crust. What are these called?
a)
igneous rock
b)
faults
c)
sills
d)
dikes
8.
Which best describes the relative age of the igneous rock intrusion in comparison to the ages of the four sedimentary rock layers?
a)
The igneous rock intrusion is older than sedimentary rock layers W, X, Y, and Z.
b)
The igneous rock intrusion is older than sedimentary rock layer W and younger than sedimentary rock layers X, Y, and Z.
c)
The igneous rock intrusion is younger than sedimentary rock layer W and older than sedimentary rock layers X, Y, and Z.
d)
The igneous rock intrusion is younger than sedimentary rock layers W, X, Y, and Z.
9.
Which best describes a fossil that helps determine the relative age of a rock layer?
a)
trace fossil
b)
radioactive fossil
c)
unconformity fossil
d)
index fossil
10.
Which is the most accurate method scientists can use to estimate Earth’s age?
a)
relative dating
b)
superposition
c)
relativism
d)
radioactive dating
11.
Which best compares bacteria and viruses?
a)
Bacteria are living organisms, but viruses are not.
b)
Bacteria cause disease, but viruses do not.
c)
Bacteria have genetic material, but viruses do not.
d)
Bacteria are smaller than viruses.
12.
What is the main purpose of hand sanitizer?
a)
to increase cell production on one’s hands
b)
to reduce the number of virus strands
c)
to decrease the bacteria found on one’s hands
d)
to promote viral contamination
13.
Which situation would most favor the spread of infectious disease?
a)
use of vaccines
b)
overcrowding
c)
small population
d)
sanitary conditions
14.
How are quarantines used to slow the spread of an epidemic?
a)
Quarantines prevent individuals from eating food that is potentially
contaminated.
b)
Quarantines allow enough time for antibiotics to take effect in
infected individuals.
c)
Quarantines keep people inside their homes so that family members
can provide care for each other.
d)
Quarantines keep infected individuals separate so they cannot pass
the disease to others.
15.
Which is the vector for malaria?
a)
mosquito
b)
fly
c)
bee
d)
worm
16.
Which organisms are used to manufacture human insulin?
a)
protozoans
b)
amoebas
c)
algae
d)
bacteria
17.
What type of science allows us to alter the DNA of a corn plant so that it will contain more protein?
a)
biology
b)
geology
c)
physiology
d)
biotechnology
18.
Which is a positive result of the use of biotechnology in agriculture?
a)
increased cost
b)
increased use of pesticides
c)
increased yield
d)
increased use of preservatives
19.
A number of projects in North Carolina biotechnology involve genomics. Which best describes genomics?
a)
the study of genes and how they function
b)
the study of technology and how it works
c)
the study of biology and how energy flows in cells
d)
the study of anatomy and how the body functions
20.
Which is the most useful change made to crops using applications of biotechnology?
a)
Crops take more time to grow.
b)
Crops need more fertilizer.
c)
Crops use more nutrients.
d)
Crops resist more diseases.
21.
Which limiting factor most affects the population growth of plants in a garden?
a)
space between plants
b)
number of seeds planted
c)
types of tools used in planting
d)
number of people tending the plants
22.
Wildlife corridors are areas where wildlife can travel between two natural areas that are separated by urban development, such as highways. The development of wildlife corridors is an attempt to decrease the effect of which factor?
a)
limited space
b)
excess predators
c)
limited shelter
d)
excess water
23.
How does nitrogen in the atmosphere become beneficial to plants and eventually animals?
a)
Nitrogen must be mixed in the soil by
earthworms.
b)
Nitrogen must come in contact with decaying
organic material.
c)
Nitrogen must be converted into a useful
form by bacteria.
d)
Nitrogen must come in contact with the
ground through rainfall.
24.
Through which process is water lost through the leaves of plants?
a)
condensation
b)
evaporation
c)
runoff
d)
transpiration
25.
The relationship between an owl and a mouse is a...
a)
mutualistic
b)
symbiotic
c)
mutualistic
d)
predator-prey
100 %
