WorksheetsQuestion Bank for Grade 7 Science
Total questions: 227
Worksheet time: 2hrs 21mins
What is the cell process called that produces identical cells?
Mitosis
Meiosis
Photosynthesis
Cellular Respiration
Which results in offspring that are genetically unique and display a combination of traits from each parent?
Sexual
Asexual
Neither
Both
A bee flies from one apple blossom to another and transfers pollen as it goes. Which type results from pollination?
Sexual
Asexual
Neither
Both
Which type of reproduction results in offspring that are identical to the parent?
Sexual
Asexual
Neither
Both
A daffodil can reproduce through both sexual and asexual reproduction. How does it reproduce asexually?
All Of These
Self-Pollination
Through their root systems
Cross-Pollination
The main goal of organisms is to produce as many offspring as possible to carry on their genetic information.
True
False
Which type of reproduction tends to be a longer process?
Sexual
Asexual
They occur at the same rate
Both are slow processes
Which type of reproduction tends to produce more offspring?
Sexual
Asexual
They occur at the same rate
Sexual, Asexual, or Both?
Sexual
Asexual
Both
Neither
What is the cell process called that produces sex cells?
Mitosis
Meiosis
Photosynthesis
Cellular Respiration
What theory proposes that organisms with traits better suited to their environment are more likely to survive and reproduce?
Acquired Characteristics
Embryology
Survival of the Smartest
Natural Selection
The fur of the snowshoe rabbit changes to a lighter color in the winter. This allows the rabbit to blend in with its surroundings. This change is an example of:
Adaptation
Extinction
Competition
Succession
Match the following terms with their definitions
Evolution
a change in a species DNA over time because of natural selection
Adaptation
Any variation that makes an organism better able to survive
Variation
An inherited trait that makes and individual different
Mutation
A permanent change in the DNA
Whales and dolphins both descended from a dog-like creature. What would we call the dog-like creature?
Great-Grandparent species
Old Species
A common ancestor
A common descendant
In the phrase "survival of the fittest," the term "fittest" refers to:
The best-adapted organisms
The biggest organisms
The smartest organisms
The fastest organisms
the process by which organisms that are best adapted to their environment are most likely to survive and reproduce.
adaptation
natural selection
niche
competition
an inherited behavior or physical characteristic that helps an organism survive and reproduce in its environment.
adaptation
natural selection
niche
competition
Adaptations can be:
camouflage
ability to survive cold weather
hunting skills
all of the above
Differences in traits are called:
natural selection
genetic variations
artificial selection
adaptations
Vocab check:
The theory that organisms have slowly changed over time...
fossil record
relative dating
evolution
adaptation
The following evidence supports the theory of evolution: Check all that apply.
similar body structures in organisms
Similar DNA in organisms
population trends
ancient fossils revealing adaptations of organisms
natural selection
The end result of mitosis is
4 Identical Cells are produced
4 genetically different cells are produced
2 identical cells are produced
2 genetically different cells are produced
The end result of meiosis is...
4 identical cells
4 genetically different cells
2 identical cells
2 genetically different cells
How many chromosomes do the daughter cells have in mitosis?
23
46
2
4
How many chromosomes do the daughter cells have in meiosis?
23
46
2
4
If an organism reproduces asexually, its offspring will most likely be...
genetically identical to the parent
genetically different from each other
produced from specialized cells known as gametes
A mutant
What is the correct order for the phases of mitosis?
Prophase, Anaphase, Telophase, Metaphase
Anaphase, Telophase, Prophase, Metaphase
Telophase, Anaphase, Prophase, Metaphase
Prophase,
Metaphase, Anaphase, Telophase
Timmy fell off his skateboard and scraped his knee. Which cell process is going to be used to heal the wound?
Mitosis
Meiosis
The wound would not heal
Cell diffusion
Which phase does the cell grow and develop?
Prophase
Interphase
Cytokinesis
Metaphase
How many divisions are in meiosis?
46
23
2
4
Which phase of mitosis do the chromosomes line up in the middle of the cell?
Anaphase
Metaphase
Telophase
Prophase
In which phase does crossing-over happen?
Prophase I
Prophase II
Metaphase I
Anaphase II
Mitosis is the same as which of the following?
Meiosis I
Meiosis II
Meiosis III
Crossing Over
What phase is this?
Prophase I
Metaphase II
Anaphase I
Telophase II
What phase is this?
Telophase I
Prophase II
Metaphase I
Anaphase II
What phase is this?
Metaphase I
Prophase II
Telophase I
Anaphase II
What phase is this?
Metaphase II
Prophase II
Telophase I
Anaphase I
What phase is this?
Metaphase II
Prophase I
Telophase I
Anaphase II
What phase is this?
Metaphase II
Prophase I
Telophase I
Anaphase I
What phase is this?
Telophase II
Anaphase II
Telophase I
Anaphase I
What phase is this?
Metaphase II
Prophase I
Telophase II
Anaphase I
What phase is this?
Anaphase II
Telophase I
Telophase II
Anaphase I
What phase is this?
Prophase II
Telophase II
Telophase I
Prophase I
What phase is this?
Prophase II
Prophase I
Anaphase II
Anaphase I
What phase is this?
Prophase II
Prophase I
Anaphase II
Anaphase I
What phase is this?
Prophase II
Metaphase I
Anaphase II
Telophase II
What phase is this?
Telophase I
Metaphase I
Metaphase II
Telophase II
What phase is this?
Prophase I
Metaphase I
Metaphase II
Prophase II
What phase is this?
Prophase I
Metaphase I
Metaphase II
Prophase II
How do plants in the soil affect how fast erosion happens?
It doesn't affect erosion.
It slows down erosion.
It speeds up erosion.
Which of the following is not considered a factor of erosion?
rain/running water/waves
gravity
extreme heat
wind
How do agriculture, cultivation, forest harvesting, and overgrazing affect soil?
They do not affect soil.
They have a negative affect on soil.
They have a positive affect on soil.
Soil erosion occurs . . .
where animals eat away all the plants
on steep slopes
when forests are removed
all of these
What is the relationship between wind erosion and plant cover?
More plants means more erosion
Less plant cover means less erosion
There is no relationship
More plants means less erosion
If wind, water, or ice move sediment from one place to another, it is called...
weathering.
erosion.
a sinkhole.
continental drift
A city crew cleans the storm drains as a storm is approaching. Why is this management important? Storm drains...
keep ocean waves from carrying sand away from the beach.
are a wall that keeps the wind from blowing soil away.
allow water to quickly move underground causing less erosion.
Adding harmful waste to water, air, or land is ...
Pollution
Smog
Nonrenewable Resources
Renewable Resources
What is the development of land for houses and other buildings near a city called?
composting
urbanization
ruralization
mining
Besides disturbing habitats, roadways increase:
mining
wastes
agriculture
runoff
Which image shows an urban area?
Which image shows an rural agricultural area?
Which image shows an residential or suburban area?
Which image shows a natural area?
Resources that are not able to be reproduced as quickly as they are used are called _____.
renewable resources
replaceable resources
non renewable resources
non replaceable resources
Geothermal energy uses heat from ____ to produce electricity.
the earth
coal
oil
natural gas
Uranium atoms are split to create a tremendous amount of energy in a _____ power plant.
biomass
geothermal
nuclear
hydroelectric
What type of power plant uses the potential energy of water trapped behind a dam?
nuclear power plant
hydroelectric power plant
solar station
tidal harness
What is a disadvantage of using non-renewable resources?
They have a large carbon footprint.
They can all be used up over time.
They can lead to global warming.
All of these.
Which of the following can be a disadvantage of renewable resources?
They can be intermittent (only available at certain times or in certain places).
They release a lot of CO2 and have a large carbon footprint.
They are renewable and will always be available.
Renewable resources have no disadvantages.
Pollution traced to a single point
water shed
permeable
point source pollution
non-point source pollution
The Portion of water that flows across the surface that does not soak into the ground and runs into water bodies
what
fertilizer
erosion
runoff
Pollution that cannot be traced to a single point because comes from many sources
estuary
water shed
non point source pollution
point source pollution
In what state of matter is kinetic energy the highest most likely?
Solid
Liquid
Gas
Which model is demonstrating what molecules in a solid look like.
Which model is demonstrating what molecules in a liquid look like.
Which model is demonstrating what molecules in a gas look like.
If thermal energy is increasing, what is happening to the kinetic energy.
Kinetic energy would be decreasing
Kinetic energy would stay the same
Kinetic energy would be increasing
The total kinetic energy of the tiny particles that make up matter.
Thermal Energy
Energy Transfer
Temperature
Heat
Movement of energy from one object to another.
Heat
Energy Transfer
Themal Energy
Temperature
Energy transferred between two objects with varying temperatures, always transferring from warmest to coldest until the two objects have equal temperatures.
Heat
Thermal Energy
Energy Transfer
Temperature
What type of heat transfer takes place when you touch a warm mug of hot chocolate?
Radiation
Convection
Conduction
None of the above
Conduction requires
Electricity
the electromagnetic spectrum and particles
air or water flow
direct contact
Heat transfer always moves ...
cold to hot
east to west
hot to cold
north to south
The following diagram shows water in contact with an ice cube and warmer air.
Which way will energy flow?
From the air to the water
From the water to the air
From the ice cube to the air
From the ice cube to the water
Where do we see conduction in a pot of boiling water on the stove?
The water heats up by touching the hot, metal pot.
The steam from the hot water rises out of the pot.
The heat from the fire can be felt on all sides.
The handle of a metal spoon warms up when it is placed in a hot bowl of soup because of ________.
convection
conduction
radiation
You get sunburned due to __________ from the sun.
conduction
convection
radiation
Near the ceiling of a room the air is warmer. The warm air rises because of ________.
conduction
convection
radiation
The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?
radiation
conduction
convection
The type of heat transfer that creates currents in water is called ________.
conduction
convection
radiation
Cell divides twice
Mitosis
Meiosis
Both
What is this?
Mitosis
Meiosis
Both
2 daughter cells
Mitosis
Meiosis
Both
Occurs in both plants and animals
Mitosis
Meiosis
Both
What is this?
Mitosis
Meiosis
Both
Begins with interphase
Mitosis
Meiosis
Both
Sam and Madeline are having another baby. Which statement is true?
The baby will inherit the trait.
The baby will be a carrier for the trait.
The baby will not inherit or carry the trait.
None of these are correct.
This pedigree shows how left handedness has been passed. Can Mike and Molly have a left handed child?
No, their child can't be left handed.
There is not enough information to tell.
Yes, they can have a left handed child.
They can have a left or right handed child.
Which statement about this Punnett square is NOT true?
There is a 50% of offspring with green pods.
The offspring have a 50% chance of inheriting a dominant gene.
The parents are heterozygous.
Each parent carries at least one recessive gene.
Which statement about this Punnett square is true?
All of the offspring will have brown eyes.
1 parent has brown eyes and the other has blue.
Both parents have blue eyes.
They have a 25% chance of offspring with brown eyes.
Which statement about this Punnett square is NOT true?
1 parent is heterozygous, the other is homozygous.
The offspring have a 50% chance of being homozygous.
The offspring have a 50% chance of having blue eyes.
50% of the offspring be homozygous for brown eyes.
How many offspring did Walter and Suzanne have?
4
3
7
5
Which statement about this Punnett square is true?
Both parents have yellow pods.
All of the offspring will inherit at least 1 yellow pod gene.
The parents are both heterozygous.
Yellow pods is a dominant trait.
How many female carriers are in this pedigree?
2
5
3
4
If 1 parent has curly hair (CC) and 1 has straight hair (cc), what type of genotype will their offspring inherit?
CC
cc
Cc
There is not enough information to tell.
If 1 parent has curly hair (CC) and 1 has straight hair (cc), what type of offspring will they have?
Heterozygous
Homozygous
Whatsazygous
Whosazygous
How many children did Noah and Mary have?
3; 2 girls and 1 boy.
3; 2 boys and 1 girl
4; 3 girls and 1 boy
4; 2 girls and 2 boys
Which of the following shows how a trait is passed through multiple generations of a family?
Family Square
Genetic Chart
Punnett Square
Pedigree Chart
What is a tool used to predict which genes an offspring can inherit?
Punnett Square
Pedigree Chart
Genetic Chart
Family Square
What does each box in a Punnett square represent?
A 100% chance of possible genes from the parents.
A 50% chance of possible genes from the parents.
A 25% chance of possible genes from the parents.
A 75% chance of possible genes from the parents.
Can 2 right handed people have a left handed baby?
No, they will always pass on a dominant gene to be right handed.
Yes, if they both pass on a recessive left handed gene.
Yes, handedness is always 50% right, 50% left.
Yes, if at least 1 parent passes on a left handed gene.
Gregor Mendel bred pea plants with green pods (GG) with plants that had yellow pods (gg). What is true about the offspring of these plants?
They would all have yellow pods.
They would all have green pods.
They would all be homozygous.
50% would have yellow pods and 50% would have green.
What does a fully colored in circle or square on a pedigree represent?
Someone who carries a gene for the trait.
Someone who has the trait.
Someone who has no genes for the trait.
Someone who has reproduced.
What does a half shaded in circle or square represent on a pedigree?
Someone who carries a gene for the trait.
Someone who has the trait.
Someone who has no genes for the trait.
Someone who has died.
What do the circles and squares represent on a pedigree chart?
Squares have the trait, circles are carriers.
Squares are females, circles are males.
Circles are females, squares are males.
Circles have the trait, squares are carriers.
Which statement about this Punnett square is NOT true?
The parents genotypes are both Bb.
Purple is the dominant flower color.
They could have offspring with purple or white flowers.
The offspring have a 50% chance for purple flowers.
Which of the following are not a part of the Electromagnetic Spectrum?
Gamma Rays
Radio waves
Magnetic waves
x-rays
Gamma Rays are
High energy
Low energy
Medium energy
Not Dangerous
Diagram shows a phenomenon occurs when the spotlight is directed onto a mirror surface. What is the principle of light shown in the situation?
Light travels in a straight line
Refraction of light
Reflection of light
Light travels in parallel
A student placed a pencil in a cup of water. The pencil appears broken because light
always travels in a straight line.
bends when it passes through water.
makes the water in the glass evaporate.
reflects the pencil on the water's surface.
Which particle is a wave of light?
proton
neutron
electron
photon
Radio waves and _______ are used in communication
Microwaves
Gamma rays
Visible light
Ultraviolet
Utilized in treating cancer, the radiotherapy
gamma ray
x-ray
visible light
microwave
the height or depth of a wave that determines how much ENERGY the wave carries. In a sound wave, it is also synonymous with how much volume the wave carries.
wavelength
compression
amplitude
The wave of energy we can see is ___________
visible light
radio waves
microwaves
x-rays
What is radiant energy?
energy from the earth
energy from heat
energy given off by the sun
energy from ocean waves
The definition of the word refract is __________
to make warm
to go through
to bend
to create energy
The highest point of a wave is known as the ___________
wavelength
trough
amplitude
crest
The area inside the city is called ______.
urban
suburban
rural
Urban sprawl
is when cities spread out using up surrounding land.
puts a strain on existing infrastructures.
creates an increase in pollution.
all of these.
A poorly planned development that spreads a city’s population over a wider and wider geographic area is
industrialization
urban sprawl
urbanization
metropolitan area
Urban land use does not typically include...
farming
residential
industrial
commercial
Which activities are found in a rural settlement?
Mining, fishing, farming and industry.
Livestock, construction, fishing and farming.
Farming, agriculture, tourism and industry.
Livestock, farming, fishing and mining.
Find the picture that shows an urban community.
Find the picture that shows a suburban community.
Find the picture that shows a rural community.
The natural environment exploited by humans leads to.............
Change in habitat
Change in ecosystem
Environmental degradation
Changes in environment
.................. is the decline in the productive capacity of land for some time or permanently.
Land Reclamation
Land Degradation
Land Use
Land Profile
Desertification refers to
increasing forest cover
increase in water table
increase in agricultural land
increase in dry areas of land
This image is an example of what type of land degradation
Desertification
Deforestation
Urban Sprawl
Urbanization
What is an effect of land pollution?
no clean drinking water
loss of habitat for animals
diseases from breathing in poor quality air
What is the largest cause of land pollution?
Animal waste
Plants decomposing
Human actions
Which of the following are causes of land pollution?
Mining
Increase in greenhouse gases
Pesticides
Landfills
Human sewage
What is land pollution
A known substance in the air that can cause harm to humans and the environment.
Destruction of the Earth’s surface caused by human activities and the misuse of natural resources.
The application of science and engineering knowledge and concepts to care for and/or restore our natural environment and/or solve environmental problems.
Destruction of the Earth’s surface caused by renewable energy
What does a wave carry from place to place?
energy
matter
people
The highest point on a transverse wave is the
compression
crest
rest position
trough
The lowest point on a transverse wave is the
compression
crest
rest position
trough
The number of waves that pass somewhere in a second is:
amplitude
frequency
wavelength
A wave that can travel through matter and empty space is a:
electromagnetic wave
longitudinal wavy
transverse wave
What kind of wave is this?
electromagnetic
longitudinal
transverse
Waves that require a material to travel though are called
electromagnetic waves
mechanical waves
ocean waves
transverse waves
I do not know and do not wish to answer.
This picture is an example of which type of wave?
transverse wave
compression wave
ocean wave
#1 refers to the
wavelength
amplitude
crest
trough
#2 refers to the
wavelength
amplitude
crest
trough
#3 refers to the
wavelength
amplitude
crest
trough
#4 refers to the
wavelength
amplitude
crest
trough
Urbanization is
the process by which human activity and natural process damage land to the point that it can no longer support the local ecosystem.
replacing forests, fields, and grasslands with houses, roads, schools and shopping area.
the growth of urban areas caused by people moving into cities
The process by which wind, water, ice, or gravity transports soil and sediment from one location to another
When human activity and natural process damage land to the point it can no longer support the local ecosystem.
Urbanization
Erosion
Land Degradation
Deforestation
When wind, water, ice, or gravity transports soil and sediment from one area to another it is called
Erosion
Desertification
Deforestation
Urbanization
This image is an example of what type of land use
Residential
Commercial
Agricultural
Recreational
Land that is kept untouched but is used for hiking and other leisure activities
Transport land
Agricultural Land
Residential Land
Recreational Land
This image is an example of what type of land degradation
Desertification
Deforestation
Urbanization
Urban Sprawl
Land used for business and/or use of natural resources is called
Residential Land
Transport Land
Commercial Land
Agricultural Land
Land use for building homes and small communities
Recreational Land
Residential Land
Transport Land
Commercial Land
Urban Sprawl is
large network of roads and train tracks that connect urban and rural areas across the country
process by which land becomes more desert-like and unable to support life
replacing forests, fields, and grasslands with houses, roads, schools and shopping area.
the process by which human activity and natural process damage land to the point that it can no longer support the local ecosystem.
Land use for roads and train tracks is called
Transport land
Industrial Land
Residential Land
Agricultural Land
True or false: Rural areas have a dense population and many buildings.
True
False
Several factors can lead to land degradation. Which of these activities is least likely to contribute to land degradation?
Urbanization
Deforestation
Poor farming methods
Using an irrigation system on crops
Soil erosion can increase when humans remove trees and other vegetation from an area. What is this process called?
Decomposition
Conservation
Deforestation
Urbanization
Choose the following that describes why land is important to humans . (Choose all that apply)
Fossil Fuels for energy
Nutrients for plants to grow
Buildings
Minerals for Construction
