Download released-questions-2014-tcap-science

TCAP
Spring 2014
Item Release
Grade 7 Science
1100779
1 2 3 4 5 A B C D E
Printed in the USA
ISD11704
Item # 1
The equation to determine distance using speed and time is shown below.
Distance(d ) = Speed (s)× Time(t )
How far does an object move if it travels at a speed of 10 meters per second for 8 seconds?
A 0.8 meter
B 8 meters
C 80 meters
D 800 meters
TNS40355_C
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Item # 2
The top layer of Earth is only about 50 kilometers thick. This layer is known as the
A
mantle.
B
outer core.
C
inner core.
D
crust.
TNS51117_D
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Item # 3
Which of these best describes a method of sexual reproduction in plants?
A
Roots of a lily plant are cut and replanted.
B
Flowers from a carrot plant are pollinated and produce seeds.
C
A potato planted in the ground grows a new stem.
D
A runner from a strawberry plant produces genetically identical offspring.
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Item # 4
A person uses a bottle opener to remove a cap from a bottle.
What type of simple machine is the bottle opener?
A
lever
B
pulley
C
wheel and axle
D
inclined plane
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item # 5
Two objects are connected by a rope over a pulley.
According to Newton’s second law of motion, the masses will start to move if the
A
acceleration of Object 1 is greater than the acceleration of Object 2.
B
acceleration of Object 2 is greater than the acceleration of Object 1.
C
mass of Object 1 is greater than the mass of Object 2.
D
mass of Object 2 is greater than the mass of Object 1.
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Item # 6
A student is examining several unknown minerals. Which tool will be most helpful in
identifying the minerals?
A
ruler
B
spring scale
C
steel file
D
hot plate
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Item # 7
The diagram below shows the layers of Earth.
What makes up most of Layer 3?
A
liquid water
B
molten rock
C
hydrogen and helium gas
D
liquid iron and nickel
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item # 8
The table below shows four traits that occur in guinea pigs.
Two parent guinea pigs that both express recessive traits are crossed. Which trait will most
likely be expressed in the offspring?
A
rough coat texture
B
short fur
C
black coat color
D
white spots
TNS50925_D
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Item # 9
A diagram of a flower is shown below.
Which of these are both male reproductive structures?
A
Stigma and Style
B
Anther and Filament
C
Style and Ovary
D
Stigma and Anther
TNS40345_B
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Item # 10
A student wanted to find out if salt affects the time it takes ice to melt. The student set up the
investigation shown in the chart below.
Which is one source of error in this investigation?
A
using a balance to measure mass
B
applying salt to only one of the ice blocks
C
placing the ice blocks at the same location
D
melting the ice blocks at different times of day
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Item # 11
In one type of plant, red flowers (R) are dominant to white flowers (r). Two plants that are
heterozygous for red flowers are crossed.
What is the probability that this cross will produce an offspring with white flowers?
A
1
4
B
2
4
C
3
4
D
4
4
TNS20333_A
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Item # 12
The diagram shows a divergent plate boundary.
Which of these will most likely happen because the lithospheric plates move away from each
other?
A
New sea floor forms.
B
Tides become higher.
C
Winds become stronger.
D
Water moves to higher latitudes.
TNS40556_A
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Item # 13
As a riverbank erodes away, sand and mud are transported downstream and settle at the
bottom of a lake.
Over time, what type of rock is most likely formed at the bottom of the lake?
A
igneous
B
lunar
C
metamorphic
D
sedimentary
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Item # 14
Some organisms in an environment are shown in the picture below.
Which has the ability to absorb carbon dioxide (CO 2 ) from the environment and produce
glucose (C 6H 12O 6 )?
A
plant
B
water
C
soil
D
frog
TNS20461_A
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Item # 15
An organ system is represented by the diagram below. This system carries nutrients and
wastes throughout the body.
What organ system is represented?
A
excretory
B
nervous
C
skeletal
D
circulatory
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Item # 16
Geologists placed posts on opposite sides of divergent plates to determine the rate of plate
movement. How far apart will the posts most likely have moved after 10 years?
A 50 centimeters
B 5 meters
C 50 meters
D 5 kilometers
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Item # 17
Look at this diagram of an animal cell.
The arrow is pointing to
A
the endoplasmic reticulum
B
the Golgi apparatus
C
a mitochondrion
D
a ribosome
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Item # 18
Students set up four petri dishes. Each petri dish contained the same amount of nutrient
material and bacteria. The bacteria were grown under different conditions for ten days. The
diameter of the bacteria colonies was measured after ten days.
Which statement best identifies the error in their investigation?
A
Two independent variables were being used.
B
The difference in temperatures between each trial was too small.
C
Ten days was not enough time to gather accurate information.
D
The investigation had only one control.
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Item # 19
A student put a stalk of wilted celery into a glass of water. After one hour, the celery was no
longer wilted.
Which sentence best explains why the celery stalk was no longer wilted?
A
Salt diffused out of the cells of the celery stalk.
B
Salt diffused into the cells of the celery stalk.
C
Water diffused out of the cells of the celery stalk.
D
Water diffused into the cells of the celery stalk.
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Item # 20
A stem cutting of a rose plant was planted in a pot. Weeks later, the cutting grew roots and
began to grow into a new rose plant.
Which process led to the formation of the new rose plant?
A
pollination
B
germination
C
sexual reproduction
D
asexual reproduction
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Item # 21
Four methods of reproduction are shown in the diagrams below.
Which diagram represents sexual reproduction?
A
1
B
2
C
3
D
4
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Item # 22
Which of these correctly identifies a cell organelle and its function?
A
The nucleus temporarily stores materials.
B
The ribosome makes proteins.
C
The vacuole performs cellular respiration.
D
The Golgi complex converts light energy to chemical energy.
TNS40338_B
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Item # 23
A truck that is traveling at a constant speed is carrying some boxes, as shown in the picture
below.
If the truck comes to a sudden stop, what will most likely happen to the boxes?
A
They will stay in the middle of the truck.
B
They will slide toward the front of the truck.
C
They will slide toward the back of the truck.
D
They will fall off the side of the truck.
TNS40562_B
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Item # 24
The diagram below shows a process that occurs in living organisms.
Which process is most likely represented in this diagram?
A
asexual reproduction
B
cellular respiration
C
simple diffusion
D
cell division
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Item # 25
A transverse wave is shown.
Amplitude is measured by the distance between which points of the wave diagram?
A
1 and 5
B
1 and 2
C
2 and 4
D
3 and 4
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Item # 26
Which of these formed the Appalachian Mountains?
A
sea-floor spreading
B
continental plates colliding
C
river sediment deposition
D
frequent earthquake activity
TNS40351_B
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Item # 27
Which statement best explains Newton’s third law of motion?
A
An object at rest tends to stay at rest.
B
For every action there is an equal and opposite reaction.
C
The acceleration of an object is based on the force applied.
D
An object continues its motion until an unbalanced force is applied.
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Item # 28
As the ozone layer in the upper atmosphere becomes depleted, skin damage can occur from
exposure to high levels of ultraviolet (UV) rays. Which human activity has contributed to the
breakdown of the ozone layer?
A
construction of wind turbines to generate electricity
B
introduction of invasive plant species into local ecosystems
C
construction of dams for hydroelectric power
D
release of chlorofluorocarbons (CFCs) into the atmosphere
TNS40518_D
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Item # 29
Which statement describes a function of a cell nucleus?
A
The nucleus stores cellular wastes.
B
The nucleus defends the cell against diseases.
C
The nucleus controls the activities of the cell.
D
The nucleus produces energy for the cell.
TNS51088_C
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Item # 30
The map shows the motion of a tectonic plate that includes the country of India.
Which is the best approximation of the distance this plate moves every year?
A
less than one millimeter
B
a few centimeters
C
several meters
D
more than one kilometer
TNS51137_B
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Item # 31
Which statement best explains how photosynthesis and cellular respiration are related to one
another?
A
Plant cells are the only cells that perform either photosynthesis or cellular respiration.
B
Glucose is a product of both photosynthesis and cellular respiration.
C
Water is a reactant of both photosynthesis and cellular respiration.
D
Products in photosynthesis are reactants in cellular respiration.
TNS51099_D
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Item # 32
The dog pictured below applies a constant force to the sled.
Force( F ) = Mass(m)× Acceleration(a)
What change in force is required for the sled to accelerate at twice its current rate?
A
The force must be increased to four times the current amount.
B
The force must be increased to double the current amount.
C
The force must be reduced to one-half of the current amount.
D
The force must be reduced to one-fourth of the current amount.
TNS40546_B
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Item # 33
When water vapor, methane, and carbon dioxide are released into the atmosphere, trapped
heat is reradiated back to Earth. Which of these will most likely occur when heat is reradiated
back to Earth?
A Acid precipitation will form.
B Soil contamination will increase.
C Surface temperatures will increase globally.
D The ozone will become thinner and break down.
TNS20494_C
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Item # 34
After a living cell is placed in pure water, the cell will
A
enlarge when water diffuses across the membrane into the cytoplasm.
B
shrink when large molecules are transported into the cytoplasm.
C
enlarge when water from inside the cell is carried out across the membrane.
D
shrink when sugars diffuse out of the cell across the membrane.
TNS40506_A
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Item # 35
A school had a garden with four sections, each with the same type of soil. Students covered
each section with a different type of weed-control cloth. The students planted 10 pepper plants
in each section through holes cut into the weed-control cloth. The students kept all the
growing conditions in each section the same. What is the independent variable in this
investigation?
A
the number of weeds in each section at the end of the investigation
B
the health of the pepper plants at the end of the investigation
C
the type of soil in the garden sections
D
the type of weed-control cloth
TNS40248_D
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Item # 36
Time 1 shows a rock underground. Time 2 shows the rock exposed at the surface many years
later.
What is the term for the process that exposed the rock at the surface?
A
cementation
B
erosion
C
transportation
D
deposition
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Item # 37
A go-cart traveled 200 meters in 18 seconds. What was the average speed of the go-cart using
the formula below?
Speed =
s=
Distance
Time
d
t
A
0.09 meters second
B
11.1 meters second
C
218.0 meters second
D 3,600.0 meters second
TNS30810_B
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Item # 38
An offspring that resulted from sexual reproduction has most likely received
A
only dominant genes from a single parent.
B
identical sets of genes from two different parents.
C
only chromosomes from one parent and only genes from another parent.
D
the same number of chromosomes from a male parent and a female parent.
TNS40511_D
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Item # 39
The chart shows the properties of some minerals.
A sample of a mineral is red and has a white streak. Based on the chart, which type of mineral
is the sample?
A
Sulfur
B
Serpentine
C
Opal
D
Hematite
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Item # 40
A light bulb manufacturer plans to introduce a new type of energy efficient bulb. The company
plans comparison tests between the new light bulb and a standard bulb.
Which comparison is most helpful in determining if the new bulb meets the goal of decreased
energy usage?
A
the brightness of the bulbs
B
the spectrum of light produced by each bulb
C
the average number of hours the bulbs stay lit
D
the amount of electricity consumed to light each bulb
TNS21136_D
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Item # 41
In the diagrams below, the circle represents a particle in a wave. Which diagram best
demonstrates a particle moving in a transverse wave?
A
B
C
D
TNS40266_A
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Item # 42
The diagram shows parts of a flower.
Which number on the diagram represents the part of the flower that guides pollen to the
ovary?
A
1
B
2
C
3
D
4
TNS50924_A
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Item # 43
Most single-celled aquatic organisms use oxygen that is dissolved in water. When the dissolved
oxygen concentration in the water is greater than the oxygen concentration in the organism,
oxygen molecules pass through the cell membrane into the organism. What process causes this
movement of oxygen molecules?
A
respiration
B
photosynthesis
C
mitosis
D
diffusion
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Item # 44
The table below shows different types of pollination data for the fruit from one plant species.
Which graph best represents some of the data in the table?
A
B
C
45
D
TNS30608_B
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Item # 45
A student hypothesized that a mouse would learn to run through a maze faster if food was at
the end of the maze.
Which tool will best help the student determine if the speed of the mouse improved?
A
metric ruler
B
pan balance
C
stopwatch
D
spring scale
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