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WorksheetsNevada CRT Review 2015
Total questions: 75
Worksheet time: 4hrs 5mins
Name
Class
Date
1.
Which of these forms of water has the greatest kinetic energy?
a)
boiling water
b)
melting water
c)
freezing water
d)
condensing water
2.
The diagram below shows four different positions of Earth during the year as it orbits the sun. In which position is the northern hemisphere experiencing winter?
a)
position 1
b)
position 2
c)
position 3
d)
position 4
3.
A student collected many different-sized samples of the same kind of rock from a certain area. She measured the mass and volume of each sample and plotted the results on the scatter plot. Based on the scatter plot, which is the best estimate of the mass of a rock sample taken from the same area that has a volume of 15 mL?
a)
5 g
b)
10 g
c)
15 g
d)
20 g
4.
Based on its location in the periodic table, which element in the table is least reactive?
a)
Li
b)
F
c)
Ca
d)
Kr
5.
Which of these is an example of chemical energy being converted into thermal energy?
a)
water boiling
b)
butter melting
c)
candles burning
d)
steam condensing
6.
The picture shows two mature plants. The two plants were cross-pollinated and each plant produced seeds. Which statement most likely describes a characteristic of the offspring that will grow from the seeds produced by each plant?
a)
The offspring will grow taller than the parent plants.
b)
The offspring will have healthier leaves that the parent plants.
c)
The offspring will produce fewer flowers than the parent plants.
d)
The offspring will have light-colored flowers like the parent plants.
7.
Which statement best describes how climate conditions in Nevada would be different if the tilt of Earth's axis was at zero degrees?
a)
The seasons in Nevada would be opposite from the current seasons.
b)
Nevada would experience climate conditions that change very little throughout the year.
c)
Climate conditions in Nevada would be coolest when Earth is closest to the sun.
d)
Nevada would receive the most energy from the sun in the summer and the least in the winter.
8.
During a classroom investigation, a teacher provided a group of students with four different containers of pure water. The students were asked to measure the mass and volume of the water in each container and to calculate its density based on their measurements. The table below shows the results of their investigation. Which of these statements is best supported by the data in the table?
a)
The density of pure water is independent of the container used to hold the water.
b)
The density of pure water decreases as the mass of water in each container increases.
c)
The density of pure water increases as the volume of water in each container decreases.
d)
The density of pure water is dependent on the shape of each container holding the water.
9.
During an investigation, a black piece of cloth is placed on a sidewalk on a sunny day. The temperature of the cloth is measured every five minutes for 20 minutes. The graph below shows the results of the investigation. Which of these statements best explains the results shown in the graph?
a)
The sun gives off hat energy, which is transferred to the sidewalk, and then the sidewalk transfers heat to the cloth.
b)
The cloth reflects light energy from the sun, which expands the molecules in the cloth, and this expansion raises the cloth's temperature.
c)
The sun gives off heat energy, which is transferred to the atmosphere, and the surrounding air transfers heat to the cloth.
d)
The cloth absorbs electromagnetic energy from the sun, which increases the movement of molecules in the cloth, and this process raises the cloth's temperature.
10.
A mining company has just developed a machine that removes more dirt per day than previous methods. Which is a negative consequence of the company using this technology?
a)
The machine may require maintenance.
b)
The machine will remove native grasses from the topsoil.
c)
The machine works faster and longer than human labor.
d)
The mining company will lose money at the beginning because the machine will cost so much.
11.
Which part of the electromagnetic spectrum has frequencies that are greater than the frequency of visible light?
a)
microwaves
b)
infrared light
c)
radio waves
d)
ultraviolet light
12.
Energy is released from methane during a combustion reaction. The equation below shows the substances involved in this reaction.
CH4 + 2O2 -> CO2 + 2H2O
Identify an element that is involved in this reaction.
CH4 + 2O2 -> CO2 + 2H2O
Identify an element that is involved in this reaction.
a)
H2O
b)
CO2
c)
O2
d)
CH4
13.
Which infection of the human body can most likely be directly treated with an antibiotic?
a)
a viral infection
b)
a fungal infection
c)
a protest infection
d)
a bacterial infection
14.
Which of these diagrams most likely represents the chemical structure of a substance that is a pure element?
a)
A
b)
B
c)
C
d)
D
15.
The diagram below shows four layers of Earth's internal structure. Which layer is composed mostly of solid iron and nickel?
a)
1
b)
2
c)
3
d)
4
16.
Which of these is an SI unit of measure for the mass of an object?
a)
meter
b)
ounce
c)
milliliter
d)
kilogram
17.
Which situation is an example of an animal behavior that is not passed on genetically to the offspring of the animal?
a)
a salmon swimming upstream to spawn
b)
a squirrel moving toward a person to get food
c)
a bird migrating to a warmer climate for winter
d)
a baby turtle moving toward water after hatching
18.
The map below shows four cities that border Lake Tahoe. Which city most likely experiences lake effect snow?
a)
Truckee, California
b)
Virginia City, Nevada
c)
Carson City, Nevada
d)
Sunnyside, California
19.
The table below shows the speed of sound in different materials.
Based on the data in the table, which of these sounds will have the longest wavelength?
Based on the data in the table, which of these sounds will have the longest wavelength?
a)
a sound with a frequency of 100 hertz moving through air
b)
a sound with a frequency of 100 hertz moving through copper
c)
a sound with a frequency of 500 hertz moving through titanium
d)
a sound with a frequency of 500 hertz moving through water
20.
Which of these situations is an example of asexual reproduction?
a)
Two organisms mate to produce offspring.
b)
Specialized cells divide to produce gametes.
c)
Crossbreeding of plants produces new varieties.
d)
A single-celled organism divides to produce offspring.
21.
The diagram below shows the orbits of some of the objects that orbit the sun within our solar system.
Object X in the diagram is most likely to be which type of astronomical object?
Object X in the diagram is most likely to be which type of astronomical object?
a)
a moon
b)
a planet
c)
a comet
d)
a meteorite
22.
A science class measured the total amount of rainfall at their school each month from September through May. The total rainfall data is shown in the table below.
Based on the data in the table, which of these statements is an opinion, rather than a fact?
Based on the data in the table, which of these statements is an opinion, rather than a fact?
a)
January is the month that had the most rainfall.
b)
May is the last month that rainfall data was collected.
c)
September is the first mont of the rainfall investigation.
d)
April is the month that received the perfect amount of rainfall.
23.
Which of these would be best to use to separate small iron filings from a mixture with sand?
a)
A magnet
b)
filter paper
c)
a hot plate
d)
running water
24.
All living organisms are composed of which of the following?
a)
cells
b)
organs
c)
tissues
d)
muscles
25.
The picture below shows an electrical circuit that a student constructed.
Which change would most likely increase the resistance in this circuit?
Which change would most likely increase the resistance in this circuit?
a)
removing the switch
b)
using shorter wires to make the connections
c)
adding another light bult
d)
replacing the battery with a higher voltage battery
26.
The diagram below shows a partial food web for a marine ecosystem.
If the squid population was drastically reduced in this ecosystem, this change would have the greatest negative effect on which of these other species?
If the squid population was drastically reduced in this ecosystem, this change would have the greatest negative effect on which of these other species?
a)
salmon
b)
zooplankton
c)
orca whale
d)
elephant seal
27.
The diagram below shows a boundary between an oceanic plate and a continental plate. An X marks one location on the continental plate.
Which feature will most likely form at the location marked by an X?
Which feature will most likely form at the location marked by an X?
a)
a desert
b)
a volcano
c)
a rift valley
d)
a transform fault
28.
The box below lists the approximate percentages of gases that compose Earth's atmosphere.
All of the following would be appropriate ways to display the information in these statements except
All of the following would be appropriate ways to display the information in these statements except
a)
a bar graph
b)
a pie chart
c)
a line graph
d)
a data table
29.
Which of these situations does not involve a transfer of energy?
a)
A gas grill burns propane fuel.
b)
The sun radiates light into space.
c)
A large crate is pushed up a ramp.
d)
A helium balloon on a string floats in place.
30.
A planet in our solar system orbits the sun in approximately 225 Earth days. Which of these conclusions is best supported by this information?
a)
A planet orbits closer to the sun than Earth does.
b)
The planet's orbit is more circular than Earth's orbit.
c)
The planet orbits the sun at a slower speed than Earth does.
d)
The planet's orbit is more elliptical than Earth's orbit.
31.
Which graph shows a population of organisms that is closest to reaching the carrying capacity of its environment?
a)
A
b)
B
c)
C
d)
D
32.
A student wants to test the effect of music on plant growth. He grows some plants in a bedroom window with music playing twenty-four hours per day. He grows a different variety of plants in his backyard with no music playing. What is the main problem with the design of the investigation?
a)
There are too many variables.
b)
There is no way to repeat the procedure.
c)
There are too many ways to graph the data.
d)
There is no way to accurately measure results.
33.
Which of the following best describes the mass of the iron oxide that is produced during a chemical reaction when a fixed amount of iron combines completely with a fixed amount of oxygen?
a)
equal to the mass of the iron plus the mass of the oxygen
b)
greater than the combined mass of the iron and the oxygen
c)
equal to the mass of the iron minus the mass of the oxygen
d)
less than the mass of the iron but greater than the mass of the oxygen
34.
Which part of a plant cell contains the chromosomes?
a)
vacuole
b)
ribosome
c)
nucleus
d)
cytoplasm
35.
Which of these astronomical objects is the largest?
a)
a star
b)
a planet
c)
a spiral galaxy
d)
a solar system
36.
During an investigation, four plants were continuously exposed to various colors of light for a period of two weeks. The table below shows the increase in plant mass over the two-week period. Which statement best explains why all of the plants were grown at at temperature of 22 degrees C?
a)
The main purpose of this investigation was to see how well plants grow at 22 C.
b)
Because temperature was not the experimental variable in this investigation, it was kept the same for each plant.
c)
The best temperature for the growth of this type of plant during an investigation was 22 degrees C.
d)
Because temperature was an environmental factor in this investigation, it was determined by the plant environment.
37.
Which human body system most directly delivers nutrients to cells throughout the body?
a)
nervous system
b)
muscular system
c)
digestive system
d)
circulatory system
38.
The appearance of the moon that a student observed on a clear night was full.
Which phase of the moon could the student observe three nights later?
Which phase of the moon could the student observe three nights later?
a)
A
b)
B
c)
C
d)
D
39.
Which two laboratory instruments would be most useful for determining the density of a liquid substance?
a)
beaker and thermometer
b)
hot plate and spring scale
c)
hygrometer and metric ruler
d)
graduated cylinder and balance
40.
The diagram below shows four positions of a ball rolling down and off a curved ramp.
At which position is the kinetic energy of the ball being converted into potential energy?
At which position is the kinetic energy of the ball being converted into potential energy?
a)
position 1
b)
position 2
c)
position 3
d)
position 4
41.
The diagram below shows the undisturbed layers of rock found in an area and some of the fossils found in each layer.
Which describes how the environment in the area most likely changed over time?
Which describes how the environment in the area most likely changed over time?
a)
from desert to lake
b)
from river valley to forest
c)
from ocean to desert
d)
from grassland to coastal plain
42.
A student observed a layer of rock that contained several fossils. Which of these processes were most directly involved in forming this layer of rock?
a)
freezing and thawing
b)
evaporation and condensation
c)
erosion and runoff
d)
sedimentation and compaction
43.
A student collected the data below from his class.
He concluded that boys are more likely to be born in the fall and girls are more likely to be born in the spring. Which of these actions should he take to make his data more reliable?
He concluded that boys are more likely to be born in the fall and girls are more likely to be born in the spring. Which of these actions should he take to make his data more reliable?
a)
He should get data from more students.
b)
He should group the data by age instead of gender.
c)
He should factor in where the students were born.
d)
He should ask about the students' birth month instead of birth season.
44.
The table below shows some of the characteristics of four groups of organisms.
Based on the characteristics shown, which group could include reptiles.
Based on the characteristics shown, which group could include reptiles.
a)
group 1
b)
group 2
c)
group 3
d)
group 4
45.
A solid metal ball with a mass of 10.0 kg is placed on a smooth floor. An impact force of 20.0 newtons is applied to the stationary ball. Which of these is closest to the acceleration of the ball immediately after the impact force is applied? HINT: F=ma
a)
0.5 m/s2
b)
2.0 m/s2
c)
30.0 m/s2
d)
200.0 m/s2
46.
The diagram below shows the relative positions of Earth, the moon, and the sun.
Which phase of the moon can be observed from Earth when these bodies are positioned in this way?
Which phase of the moon can be observed from Earth when these bodies are positioned in this way?
a)
full moon
b)
new moon
c)
first quarter
d)
waxing gibbous
47.
When investigating a new cancer-fighting drug, medical researchers give some of the subjects a pill that contains the drug. Some other subjects are given a pill that does not contain the drug. The drug-free pill serves what purpose in the design of this investigation?
a)
a control
b)
an experimental variable
c)
a separate trial
d)
a qualitative comparison
48.
What is the smallest unit of an element that still has the properties of that element?
a)
A molecule
b)
An electron
c)
A compound
d)
An atom
49.
In rabbits, brown (B) fur is dominant to white (b) fur. If a rabbit with the genotype Bb is crossed with a rabbit with a genotype bb, what percentage of the offspring is expected to have brown fur?
a)
0%
b)
25%
c)
50%
d)
100%
50.
Which of the following is the correct ranking of organizational hierarchy of organisms from simplest to most complex?
a)
cells, organs, tissues, organ systems, organisms
b)
cells, tissues, organs, organ systems, organisms
c)
tissues, cells, organs, organ systems, organisms
d)
tissues, organs, cells, organ systems, organisms
51.
Fossils and sedimentary rocks form under specific conditions, so their presence in certain locations provides evidence for
a)
past environments
b)
stationary continents
c)
constant temperatures
d)
magnetic pole reversal
52.
A cart with a mass of 100 kg accelerates when 10 N is applied. If the mass is doubled, how much force is required to maintain the same acceleration?
a)
10 N
b)
20 N
c)
100 N
d)
200 N
53.
Which of the following is an accurate statement when comparing the terrestrial plants and gaseous planets?
a)
Terrestrial planets are smaller than gaseous planets, but both have the same mass.
b)
Terrestrial planets are denser even though they are smaller than gaseous planets.
c)
Gaseous planets are less massive because of the lower density of their materials.
d)
Gaseous planets are more likely to float out of their orbit than are terrestrial planets.
54.
Students were asked to measure a string. The actual length of the string was 8.25 cm long. Which of the following shows the measurements from the most accurate group and why?
a)
7.25cm, 7.75cm, 8.25cm, because these were the closest to the actual length.
b)
7.2cm, 7.25cm, 7.3cm, because these had the most agreement between lengths.
c)
8.25cm, 8.75cm, 9.25cm, because these had the most agreement between lengths.
d)
8.2cm, 8.25cm, 8.9cm, because these were the closest to the actual length.
55.
Most of the minerals within an ecosystem are recycled and returned to the environment by the direct activities of organisms known as
a)
producers
b)
consumers
c)
scavengers
d)
decomposers
56.
In order for a lunar eclipse to occur, the moon must be in what phase?
a)
Full moon
b)
First Quarter
c)
Last Quarter
d)
New Moon
57.
Science, technology, and society affect each other in both positive and negative ways. One example was the discovery of antibiotics. Which statement best describes the negative affect that antibiotics have had on society?
a)
The extensive use of antibiotics has led to the evolution of resistant strains of bacteria.
b)
The extensive use of antibiotics has caused several forms of new cancers to develop.
c)
The use of antibiotics in consumer products has led to increased obesity in humans.
d)
The increased use of antibiotics caused an over-abundance of medical professionals.
58.
Scientists have discovered fossils of whale ancestors that have well developed hip and thigh bones, which are typically used for walking by mammals. Modern whales most likely evolved from ancestors who
a)
lived in the sea, and then became better adapted for land.
b)
lived on land, and then became better adapted for the sea.
c)
evolved in the sea and remained in the sea.
d)
evolved on land and remained on land.
59.
In order for a mutation to be passed from one generation to the next, the mutation must be present in which cell?
a)
Skin cell
b)
Blood cell
c)
Heart cell
d)
Sperm cell
60.
Which cell type in a human would most likely have the most mitochondria?
a)
A muscle cell in the leg muscle of a runner.
b)
A cell of the stomach lining that manufactures digestive enzymes.
c)
A red blood cell that transports oxygen.
d)
A nerve cell that transmit signals to the brain stem.
61.
Which statement best explains why it is warmer at the equator than the North Pole?
a)
The equator has more daylight hours per year than the North Pole.
b)
The equator has a larger area than the North Pole.
c)
The equator is closer to the Sun than the North Pole.
d)
The equator receives more direct sunlight than the North Pole.
62.
When investigating a new cancer-fighting drug, medical researchers give some of the subjects a pill that contains the drug. Some of the other subjects are given a pill that does not contain the drug. The drug-free pill serves what purpose in the design of the investigation?
a)
An experimental control
b)
An experimental variable
c)
A separate trial
d)
A qualitative comparison
63.
Accurate estimates of the age of Earth were not possible until which discovery was made?
a)
Earth's molten core cools at predictable and measurable rates.
b)
Radioactive decay occurs in certain elements at a predictable rate.
c)
The oldest fossils are found in layers at the bottom of rock strata.
d)
The shrinking diameter of the Sun can be used to infer the age of planets.
64.
Which statement provides the best evidence that organisms of two different species share a common ancestor?
a)
They live in similar environments.
b)
They have the same anatomy.
c)
They reproduce at the same time.
d)
They have similar DNA sequences.
65.
Which of the following pairs of compounds contain the same number of atoms, but different kinds of atoms?
a)
CO2 and CaCl2
b)
CO2 and CO
c)
MgCO3 and 2CaCO3
d)
C4H10 and C5H12
66.
Many animals have an internal or external skeleton that provides support and structure. What cell structure found in plants plays a similar role?
a)
Cytoplasm
b)
Cell wall
c)
Chloroplast
d)
Cell membrane
67.
Which of the following is a transfer of chemical energy to thermal energy?
a)
A hairdryer is turned on to dry a girl's hair.
b)
A boy digests an apple, which regulates his body temperature.
c)
An atom is split to increase the temperature of the water.
d)
An ice cube is placed in warm soup and melts.
68.
Which of the following describes the differences between solids and liquids?
a)
Both have a definite shape, but only solids have a definite volume.
b)
Both have a definite volume, but only liquids have a definite shape.
c)
Solids have a definite volume and shape, but liquids only have a definite volume.
d)
Liquids have a definite volume and shape, but solids only have a definite shape.
69.
Which wave requires a medium for transmission?
a)
Light
b)
Radio
c)
Infrared
d)
Sound
70.
Our solar system is referred to as heliocentric, that means the
a)
Earth rotates around the Sun.
b)
Earth orbits around the Sun.
c)
Sun rotates around the Earth.
d)
Sun orbits around the Earth.
71.
In a science class, students are using hot plates to heat liquids during a laboratory investigation. Which practice would not be safe when conducting this procedure?
a)
Wearing goggles
b)
Tying back long hair
c)
Wearing loose-fitting clothing
d)
Using insulated gloves
72.
Metamorphic rock forms when the structure of pre-existing rock is changed. What processes can change rock in this manner?
a)
Cooling and crystallization
b)
Compaction and cementation
c)
Weathering and erosion
d)
Heat and pressure
73.
If a child is born with a genetic disorder, but the mother and father do not have the disorder, then how did the child develop the disorder?
a)
The child was exposed to an infectious agent at birth.
b)
The child has an allergy to an environmental agent.
c)
The disorder is caused by a recessive trait and both parents are carriers.
d)
The disorder is caused by a dominant trait that both parents possess.
74.
At an amusement park, the gate for a ride is locked and unlocked using a magnetic latching device. Which statement best explains why the gate is unlocked when the ride operator flips a switch that controls the latching device? The switch
a)
turns off an electrical circuit to demagnetize the latch.
b)
uses the force of gravity to demagnetize the latch.
c)
sends an infrared light beam that demagnetizes the latch.
d)
turns on an electrical heating element that demagnetizes the latch.
75.
Which of the following is a cost associated with advances of modern health practices?
a)
Improved hygiene and water treatment practices.
b)
Increase in the growth of the human population.
c)
Decrease in infant and childhood death rates
d)
Development of vaccines to prevent disease.
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