Worksheets7th grade FSSA questions
Total questions: 57
Worksheet time: 29mins
Which is least likely to cause a species to become extinct due to environmental changes?
less genetic variation
more genetic variation
specific food preferences
more competition for food
When do genetic changes occur in a population of organisms?
when the organisms become extinct
when the organisms produce offspring
when the organisms find a new food source
when the organisms interact with another species
Which will most likely happen to a species that cannot adapt to a changing enviornment?
the species will reproduce
the species will become extinct
the species will learn a new behavior
the species will continue to live in the same location
Ronald observes a sparrow's nest in a shrub outside his home. He records his observations-
Week 1- six eggs were laid in the nest
Week 3- Five eggs hatched, and one egg did not hath
Week 4- One of the chicks disappeared
Week 7- Three of the chicks learned to fly and another one disappeared.
What part of natural selection did Ronald observe?
adapation
overproduction
selection
variation
Environmental changes may lead to the evolution of a species. Polar bears live in the Arctic. Ice in the Arctic is melting fast, reducing the range where polar bears can live. If the population of polar bears does not have adaptions that allow them to survive these changes, what may happen to them?
they may become extinct
they may overpopulate
they may change the enviornment
they may become another species
Christopher Robin is studying a plant species he found in the forest. He collects leaf samples from a parent plant and from the smaller offspring growing next to it. After running some tests, he finds the offspring is genetically identical to the parent plant. Which is true about his find?
the offspring were produced sexually and two parents were required
the offspring were produced asexually; two parents were required
the offspring were produced sexually; only one parent required
the offspring were produced asexually; only one parent required
A species of rabbit can have brown fur or white fur. One rabbit with two alleles for brown fur (BB) has brown fur. A second rabbit with alleles for white fur (bb) has white fur. Which is true about the alleles B and b?
they are two different genes
they result in the same phenotype
they are two different verisons of the same gene
they provide identical instructions for a characteristic
Which statement best describes DNA?
it can found in every living cell
it can be found only in specialized cells
it can be found only in cells with a nucleus
it can be found only when cells are dividing
A cross between two parents results in 50 offspring. How many of the offspring are most likely to have the dominant trait
12
25
30
38
Which describes two things that DNA does to make life possible?
provides energy to cells and survives a cell's death
copies itself and gives instructions for building cells
copies itself and changes in response to the enviorment
provides energy to cells and passes from parents to offspring
Which trait will an organism that receives one dominant gene and one recessive gene most likely have?
it will have the dominant trait
it will have the recessive trait
it will not have either trait
not enough information to determine what the phenotype will be
Under what condition are resources such as water, food or sunlight likely to be limiting factors?
when population size is decreasing
when predators eat their prey
when the population is small
when a population is approaching the carrying capacity
Suppose that humans introduces rabbits into an area where rabbits have no natural predators. Which best predicts what would happen?
The rabbits would be killed by a new predator
the rabbits would die off because they have no food
the rabbits would fit into the ecosystem without disturbing it
the rabbits would thrive and decrease the producer population
Which best describes a food web?
many individual organisms of the same species live in the same space and share the same resources
a black bear eats fruit and then spreads the fruit's seeds through its excretion
all life is connected by the transfer of energy and nutrients among organisms and their environment
an ecosystem is made up of a community of organisms and their environment
A scientist announces that he has found a new way to produce energy. Why is it important for other scientists to replicate the results?
to include more scientists in the development of the new energy source
to confirm that the results are valid and not the results of errors
to make sure that all scientists know how to perform the same investigation
to find ways to make the investigation easier to perform
Brian conducts an investigation. He follow the procedures below:
Step 1: Hold a golf ball at a height of 50 cm, and let go.
Step 2: With a partner, measure the height to which the ball bounces
Step 3: Drop the ball 10 more times from the same height
Step 4: Find the average height to which the ball bounces
Which step indicates replication?
Step 1
Step 2
Step 3
Step 4
Zach conducts an investigation involving cells. He finds that adding a certain chemical to a cell causes it to make a protein that humans need to stay healthy. What should he do next?
repeat the investigation to see if he gets the same results
publish the results in a scientific journal
hold a press conference to announce the discovery
destroy the procedure so that no one else can repeat it
Leah heats a sample of an unknown solid until it melts into a liquid. Which describes an example of replication related to Leah's investigation?
Tina continues to heat the sample until it turns to gas
Juan lets the sample cool and then heats it again
victor heats a different sample with the same mass until it melts
Raquel heats an identical sample to see if it melts at the same temperature
A student makes a physical model of an atom using toothpicks and foam balls. What is a limitation of this physical model of an atom?
it cannot show the components that make up an atom
it is not based on experimental data collected by scientists
it cannot show the interactions that exist between the parts
it does not show the general structure of an atom
The process of photosynthesis, which takes place in green plants, is represented by the model shown. What type of model is shown?
computer model
conceptual model
physical model
mathematical model
Upon completing an investigation, Melissa summarizes the work in a lab report. Which title most likely indicated that the student used a model to prepare the report?
the proper use of lab equipment
safety procedures to follow at all times
using the international system of units
comparing the sizes of planets in the solar system
A telescope is a type of technology used to study the moons of other planets. How does this technology help scientists?
brings the objects closer to earth
enables scientists to visit the moons
makes the moons appear closer than they are
makes the moons larger than they are
Which is a true statement about the scientific theory of evolution?
it was accepted by all scientists without question
it proved what most scientists believed at that time
it had no significant impact on scientific thought and society
it was developed using large amounts of empirical evidence
Which is a true statement about scientific laws?
they are the same thing as facts
they can explain a wide range of events
they can change in light of new evidence
they are the foundation of scientific theories
Which best explains why scientists accept the theory of relativity as a valid scientific theory?
they have found an example of how the theory of relativity is true
they recognize that Albert Einstein was he smartest scientist everrrr
they believe what is agreed upon by the majority of other scientists
they are able to explain many natural events by applying the theory
An engineer claims to know the exact amount of energy it takes to move roller coaster cars to the top of the track. The engineer uses the same formula to calculate the energy needed to move any object. Which best describes how the engineer can know the right amount of energy?
he uses a theory, because the engineer can explain the motion of any object
he uses a law, because it is a formula that can be applied without exception
he uses a theory because the calculations are based on evidence
he uses a law because the motion of objects is a real world problem, not a theoretical one
Which type of electromagnetic radiation from the sun do you typically perceive on Earth?
gamma rays
infrared waves
radio waves
x-rays
What happens to frequency as wavelength decreases across the electromagnetic spectrum?
frequency increases
frequency decreases
frequency stays the same
frequency and wavelength are not related
Which colors of visible light are present in white light?
red, orange, and yellow only
blue and green only
all colors of light
no colors of light
The visible part of the electromagnetic spectrum consists of the colors that we see in a rainbow. Each color we see corresponds to a different wavelength of light. Which color of visible light has the shortest wavelength?
green
red
violet
yellow
A sound wave travels from air into a swimming pool. How does its speed change?
it travels faster
it travels slower
it stops moving
it travels at the same speed
Light travels from air into a swimming pool. How does its speed change?
it travels faster
it travels slower
it stops moving
it travels at the same speed
What is happening in this image?
light is being absorbed
light is being refracted
light is being reflected
light is traveling through a translucent material
Which appliance would you use to convert electrical energy into light energy and sound energy?
alarm clock
battery
blender
light bulb
The chemical energy in a battery is transformed into electrical energy used to power a cell phone. Which statement about this transformation is true?
a small amount of energy is destroyed during the transformation
a large amount of energy is created during the transformation
the energy is restored to its original form during the transformation
the total amount of energy remains the same during the transformation
Which energy transformation take place from position A to position D?
potential to kinetic to potential
kinetic to potential to kinetic
potential to kinetic
kinetic to potential
At which position is the roller coaster car's amount of potential energy about equal to the amount of kinetic energy?
position A
position B
position C
position D
Which description best defines heat?
the transformation of chemical energy into light energy
the total energy of the particles in a sample of matter
the thermal energy that flows from one object to another
the average kinetic energy of the particles in an object
You hold an ice cube in your hand. Why does the ice cube feel cold to you?
heat is transferred from your hand to the ice cube
heat is transferred from the ice cube to the air
cold is transferred from your hand to the ice cube
cold is transferred from the ice cube to the air
Sophia places a plate of food under a lamp to keep it warm. By which method is heat transferred to the food?
conduction
convection
radiation
transformation
Luciana notices that the air in her science classroom is much warmer than the air in her math classroom. Which describes how the air particles are different in her colder math classroom?
they move faster on average
they are vibrating
they have less average energy
they move more freely
Lucas places 20 kg samples of each substance by the same heat source. All samples are at the same initial temperature. Which substance will have the greatest temperature after some period of time?
aluminium
calcium
copper
limestone
When does erosion take place?
after water, ice and wind make rock from soil and sediment
as tectonic plates collide and one plate sinks below the other
when heat and pressure inside Earth changes a rock's structure
as water, ice, wind, and/or gravity move soil and sediment from one place to another
Which is not a way that humans can impact Earth's surface?
humans cut down trees and cause deforestation
humans affect air and water quality
humans change the flow of water with dams
humans change the flow of water through desertification
Which is not a type of rock?
magma
igneous
sedimentary
metamorphic
How does the river change the land?
the river builds up the mountains by depositing sand
the river erodes the mountains by washing away sediment
the river forces magma to Earth's surface
the river changes rock with heat and pressure
Which prediction is correct?
over time, the rock will become a metamorphic rock
over time, the rock will become an igneous rok
over time, the rock will become a sedimentary rock
over time, the rock will become magma
Which statement is true according to the law of superposition?
young fossils replace old fossils
oldest fossils are in the top rock layers
oldest fossils are in the bottom rock layers
youngest fossils are in the bottom rock layers
Which method do scientists use to find the relative ages of rock samples?
law of superposition
law of relative ages
radioactive dating
carbon 14 dating
Which letter represents the youngest layer of rock?
Layer R
Layer M
Layer F
Layer B
How can scientists use carbon 14 to determine the age of a rock?
rocks that have more carbon 14 are older
only rocks from a certain time period contain carbon 14
because carbon 14 does not decay, it shows the rocks age
the proportions of carbon 14 in the rock tells how old it is
A rock formation near Gainesville, FL was formed 530 million years ago. Which information does a scientist need to most accurately determine the age of a rock?
the percentage of mineral that makes up the rock
the percentage of fossilized marine life that makes up the rock
the amount of each radioactive element present in the rock
the amount of weathering present on the surface of the rock
Which is not one of Earth's layers?
crust
inner core
mantle
ocean
Which layer extends from below the mantle to the center of Earth?
core
continental crust
lithosphere
oceanic core
Javier is going to construct a physical model of Earth. What is the correct order, from inside to outside of Earth's layers?
crust, mantle, outer core, inner core
inner core, outer core, crust, mantle
inner core, outer core, mesosphere, asthenosphere, and lithosphere,
lithosphere, asthenosphere, mesosphere, outer core, and inner core
What does this diagram show?
tectonic plates pulling apart and forming mountains
tectonic plates colliding and causing an earthquake
tectonic plates causing a volcanic eruption
one tectonic plate sinking beneath another, forming mountains
Which is not explained by plate tectonics?
earthquakes
floods
mountain building
volcanoes
