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Worksheets7th Grade Final Spring 2018 - SMLCS
Total questions: 137
Worksheet time: 1hrs 9mins
Determine the independent variable. Does the size of the wheel impact how fast it will roll down a ramp?
how far the wheel rolls
how fast the wheel rolls
the size of the wheel
the weight of the wheel
Determine the dependent variable. Does the size of the wheel impact how fast it will roll down a ramp?
How far the wheel rolls
how fast the wheel rolls
the size of the wheel
the weight of the wheel
Determine the independent variable. Will bounce height be impacted by the size of a basketball?
size of basketball
bounce height
length of court
air pressure in the ball
Determine the dependent variable. Will bounce height be impacted by the size of a basketball?
size of basketball
bounce height
length of court
air pressure in the ball
A scientist hypothesizes the temperature at which an alligator’s egg is incubated will determine whether the alligator will be male or female. The independent variable is
the gender of the alligator
the temperature
the male alligator
the incubator
A scientist hypothesizes the temperature at which an alligator’s egg is incubated will determine whether the alligator will be male or female. The dependent variable is
the gender of the alligator
the temperature
the male alligators
the incubator
A student planted the same number of pea seeds in four pots with the same type of soil in each. He put the pots in a sunny window and gave each one different amounts of water every 3 days. This experiment is testing whether
soil is needed for peas to grow
sunlight is needed for peas to grow
the amount of water given affects how fast peas grow
the number of seeds planted affect how fast peas grow
Which question would be the best testable scientific question?
Who made the first microscope?
How many lions live in Africa?
Does the amount of salt water affect the temperature at which it boils?
How long ago did dinosaurs live on the Earth?
A series of steps designed to help you solve problems and answer questions
hypothesis
experiment
scientific method
observation
Which of the following hypotheses is written correctly?
Frozen tennis balls will not bounce high.
If a tennis ball is frozen, it won’t bounce as high as one that is not frozen.
If I heat up a tennis ball it will bounce high.
If I heat up a tennis ball, then it will not bounce as high as one that is frozen because it has less elasticity.
What is the first step in the scientific method?
state the problem based on observations
gather information/do research
plan and carry out the experiment
accept or reject hypothesis
What is the second step in the scientific method?
write a hypothesis
gather information/do research
plan and carry out the experiment
accept or reject hypothesis
What is the third step in the scientific method?
write a hypothesis
gather information/do research
plan and carry out the experiment
accept or reject hypothesis
What is the fourth step in the scientific method?
record and analyze data
communicate results
plan and carry out the experiment
accept or reject hypothesis
What is the fifth step in the scientific method?
record and analyze data
communicate results
write a conclusion
accept or reject hypothesis
What is the sixth step in the scientific method?
record and analyze data
communicate results
write a conclusion
accept or reject hypothesis
What is the seventh step in the scientific method?
record and analyze data
communicate results
write a conclusion
accept or reject hypothesis
What is the eighth step in the scientific method?
record and analyze data
communicate results
write a conclusion
accept or reject hypothesis
What is an independent variable?
Numbers, graphs, charts
What is being measured in the experiment
What is purposely being changed in the experiment
Pictures and illustrations
What is an dependent variable?
Numbers, graphs, charts
What is being measured in the experiment
What is purposely being changed in the experiment
Pictures and illustrations
What is quantitative data?
Numbers, graphs, charts
What is being measured in the experiment
What is purposely being changed in the experiment
Pictures and illustrations
What is qualitative data?
Numbers, graphs, charts
What is being measured in the experiment
What is purposely being changed in the experiment
Pictures and illustrations
The growth of a plant toward light is called
phototropism
thigmotropism
gravitropism
hydrotropism
When plants, like a venus fly trap, respond to touch it’s called
phototropism
thigmotropism
gravitropism
hydrotropism
Plants growth in response to gravity is called
photoperiodism
thigmotropism
gravitropism
hydrotropism
occurs when plants respond to water
photoperiodism
thigmotropism
gravitropism
hydrotropism
Plants respond to seasonal changes in length of night and day is called
photoperiodism
thigmotropism
gravitropism
hydrotropism
Consists of dermal, vascular and ground tissue
stems
leaves
roots
Contain distinct node and internodes
stems
leaves
roots
Captures sun’s energy and carries out photosynthesis
stems
leaves
roots
Have a waxy cuticle and stomata
stems
leaves
roots
Anchors plant to ground
stems
leaves
roots
Flowering plants that produce seeds protected by fruit
angiosperm
fruit
gymnosperm
cotyledon
germination
Ripened ovary of a flower
angiosperm
fruit
gymnosperm
cotyledon
germination
Plants whose seeds are not protected by fruit
angiosperm
fruit
gymnosperm
cotyledon
germination
Contains an embryo, stored food and a seed coat
angiosperm
fruit
gymnosperm
cotyledon
germination
Occurs when embryo begins to grow and pushes out of seed
angiosperm
fruit
gymnosperm
cotyledon
germination
This group of angiosperms has a single cotyledon seed, parallel veins in the leaves, flowers floral parts in multiples of 3, vascular bundles in the stem are scattered and fibrous roots.
dicot
monocot
nonvascular plants
seedless vascular plants
This group of angiosperms has two cotyledon seed, branched veins in the leaves, flowers floral parts in multiples of 4 or 5, vascular bundles in the stem are in a ring and a taproot
dicot
monocot
nonvascular plants
seedless vascular plants
Bryophytes make up this group. They are low-growing and live in moist areas.
dicot
monocot
nonvascular plants
seedless vascular plants
These plants are called pteridophytes. They contain water and sugar-conducting cells
dicot
monocot
nonvascular plants
seedless vascular plants
What is A pointing to?
cuticle
epidermis
guard cells
stomata
What is B pointing to?
cuticle
epidermis
guard cells
stomata
What is C pointing to?
cuticle
epidermis
guard cells
stomata
What is D pointing to?
cuticle
epidermis
guard cells
stomata
Structure that protects the embryo
seed coat
embryo
cotyledon
Structure is an undeveloped plant
seed coat
embryo
cotyledon
Supplies food for the embryo
seed coat
embryo
cotyledon
What is A pointing to?
seed coat
embryo
cotyledon
What is B pointing to?
seed coat
embryo
cotyledon
What is C pointing to?
seed coat
embryo
cotyledon
What is A pointing to?
anther
style
filament
stigma
petal
What is B pointing to?
anther
style
filament
stigma
petal
What is C pointing to?
anther
style
filament
stigma
petal
What is D pointing to?
ovary/ovule
style
filament
stigma
petal
What is E pointing to?
ovary/ovule
sepal
filament
stigma
petal
What is AB pointing to?
ovary/ovule
sepal
filament
stigma
petal
What is AC pointing to?
ovary/ovule
sepal
filament
stigma
petal
What is A pointing to?
Apical bud
Petiole
Taproot
Node
What is B pointing to?
Apical bud
Petiole
Taproot
Node
What is C pointing to?
Apical bud
Petiole
Taproot
Node
What is D pointing to?
Apical bud
Petiole
Taproot
Node
What is AB pointing to?
Internode
Lateral root
Taproot
Node
What is AC pointing to?
Internode
Lateral root
Taproot
Node
What can happen to the spores after they are released?
They can grow into an adult moss plant.
They can fuse and form a fertilized egg.
In a moss’ life cycle, when does fertilization occur?
When spores are produced
When a sperm and an egg fuse
What is a difference between a spore and a fertilized egg?
Sexual reproduction produces spores, and asexual reproduction produces a fertilized egg.
Asexual reproduction produces spores, and sexual reproduction produces a fertilized egg.
A spore begins to grow into a new plant. What is this called?
Fertilization
Germination
Which part of a moss plant produces spores?
the sperm
thin brown stalks
Which part of an apple tree might grow into a new tree?
A leaf
A seed
Bees and other animals can be pollinators. How does a pollinator pollinate a flower?
By dropping pollen on the anthers
By dropping pollen on the pistil
In an angiosperm’s life cycle, what is germination?
When pollen lands on a pistil
When a seed begins to grow into a new plant
Which part of a flower can make pollen?
The female part
The male part
A bee is one type of animal pollinator. How might an animal pollinator directly benefit from visiting a flower?
By carrying pollen to another flower
By drinking nectar
An apple tree grew from a seed that was produced by cross-pollination. How many parents does this apple tree have?
one
two
Which part of an apple tree can make seeds?
The flowers
The fruit
Which cones make eggs?
Female cones
Male cones
How can pine tree seeds get dispersed?
By blowing in the wind
By sticking to female cones
What grows in a fertilized cone?
pollen
seeds
A pine tree seed may begin to grow into a new tree. What is this called?
fertilization
germination
Angiosperms have flowers that make seeds. What do conifers use to make seeds?
cones
needles
A pine tree seed was produced by self-pollination. How many parents does this seed have?
one
two
Pollen lands on and sticks to female cones. What is this called?
fertilization
pollination
What happens after a female cone is fertilized?
seeds grow inside the fertilized cone
the fertilized cone produces pollen
Which part of a pine tree can grow into a new tree?
a needle
a seed
What is ecology?
is the study of living things which use photosynthesis to make food
is the study of animal life.
a branch of science concerned with the relationships between living things and their environment
is the study of the Earth's origin, structure, composition and history, and the nature of the processes which have given rise to the Earth as we know it today
List the following in order from SMALLEST to BIGGEST:
Population, community, ecosystem, biome, biosphere.
Biosphere, biome, population, community, ecosystem.
What is a biotic factor?
living
non-living
What is a abiotic factor?
living
non-living
What is an example of an abiotic factor?
grass
plants
sunlight
trees
What is an example of a biotic factor?
animals
rocks
sunlight
water
Which of the following would most likely happen if grasses and shrubs were removed from a rural Massachusetts ecosystem?
There would be an increase in consumers in the ecosystem.
There would be an increase of photosynthesis in the ecosystem.
There would be a decrease in energy produced by the ecosystem.
There would be a decrease of carbon dioxide available to the ecosystem.
Which if the following is a difference between a food chain and a food web?
Food chains involve only plants, while food webs involve animals.
Food chains involve only plants, while food webs involve both plants and animals.
Food chains involve plants and animals, but food webs involve only animals.
Food chains are linear and food webs are complex.
Food chains include decomposers, but food webs do not.
A food web can be best described as:
a diagram that shows all different types of relationships animals can have with one another.
a chart showing how much energy is at the different trophic levels within an ecosystem.
an interconnected web of food chains.
a map containing different biomes.
There are 10,000 calories per m2 present found in the producer level. Given that information, how many calories may be found in the first level consumers?
10
100
1000
10,0000
In this food web, the trophic level with the least energy includes which of the following organisms? sun--> grass-->insects-->frogs-->hawks
grass
mice
snake
hawk
Which of the following is the best example of primary succession?
flood → mosses → shrubs → hemlock trees
abandoned farm → grasses → exposed rock → high-order carnivores
exposed rock → mosses → grasses → herbivores
forest fire → lichens → bushes → deer
When succession occurs in areas where previous growth has occurred, it is called
primary succession
secondary succession
natural selection
pioneer succession
What is the name given to lichen or moss during primary succession?
pioneer species
founder species
volunteer species
conqueror species
J shaped graph
exponential
logistic
s shaped graph
exponential
logistic
Which of the following is a type of interspecific competition?
a shrimp and a hermit crab competing for algae to eat
all the shrimp in a tide pool competing for algae
a large bullfrog tadpole is eating a pond plant which keeps the smaller tadpoles from eating that pond plant
larger, older bullfrogs will eat smaller, younger bullfrogs in order to receive more resources
Which of the following is a type of intraspecific competition?
a shrimp and a hermit crab competing for algae to eat
all the shrimp in a tide pool competing for algae
a large bullfrog tadpole is eating a pond plant which keeps the smaller tadpoles from eating that pond plant
larger, older bullfrogs will eat smaller, younger bullfrogs in order to receive more resources
Which of the following is a type of interference competition?
a shrimp and a hermit crab competing for algae to eat
all the shrimp in a tide pool competing for algae
a large bullfrog tadpole is eating a pond plant which keeps the smaller tadpoles from eating that pond plant
larger, older bullfrogs will eat smaller, younger bullfrogs in order to receive more resources
Which of the following is a type of exploitative competition?
a shrimp and a hermit crab competing for algae to eat
all the shrimp in a tide pool competing for algae
a large bullfrog tadpole is eating a pond plant which keeps the smaller tadpoles from eating that pond plant
larger, older bullfrogs will eat smaller, younger bullfrogs in order to receive more resources
Which of the following is an example of parasitism?
Bees (+) pollinate flowers (+).
Egret birds (+) eat insects that cows (o) and horses disturb.
Fleas (+) on a dog (-).
Hyenas (-) and lions (-) both try to eat the same prey.
Which of the following is an example of commensalism?
Bees (+) pollinate flowers (+).
Egret birds (+) eat insects that cows (o) and horses disturb.
Fleas (+) on a dog (-).
Hyenas (-) and lions (-) both try to eat the same prey.
Which of the following is an example of mutualism?
Bees (+) pollinate flowers (+).
Egret birds (+) eat insects that cows (o) and horses disturb.
Fleas (+) on a dog (-).
Hyenas (-) and lions (-) both try to eat the same prey.
Which of the following is an example of competition?
Bees (+) pollinate flowers (+).
Egret birds (+) eat insects that cows (o) and horses disturb.
Fleas (+) on a dog (-).
Hyenas (-) and lions (-) both try to eat the same prey.
Cane Toads are native to Hawaii, but were introduced to Australia in the 1930’s. They had no natural predators and bred rapidly. They are currently a problem and have significantly disrupted the Australian ecosystems. Cane Toads are best described as:
parasitism
mutualism
commensalism
invasive
Remora sharks (+) are endowed with an adhesive disk on the dorsal surface of their heads. They use this adhesive disk to “hitch a ride” on larger animals, usually whales (o) , which tend to be sloppy eaters. When food floats away from the whale’s mouth, the remora can unhitch itself and collect the scraps of food floating by. This example of Remora sharks would best fit which of the following symbiotic relationships?
commensalism
mutualism
parasitism
predation
Prairie dogs contribute to the soil and water quality in their plains ecosystem. Their foraging retains water in the soil and forces fresh new grasses to continually grow. Young grasses have more nutrients for species such as bison and elk.
Invasive
Keystone
Native
Pioneer
Which of the following is an example of a specialist?
cows and raccoons
koala and panda
Which of the following is an example of a generalist?
cows and raccoons
koala and panda
What is a limiting factor?
any factor or condition that limits the growth of a population
environmental factors such as disease and competition, etc.
environmental factors such as storms, fires, extreme temp, etc.
when a population reaches a state where it can no longer grow
What is a density-dependent factor?
any factor or condition that limits the growth of a population
environmental factors such as disease and competition, etc.
environmental factors such as storms, fires, extreme temp, etc.
when a population reaches a state where it can no longer grow
What is a density-independent factor?
any factor or condition that limits the growth of a population
environmental factors such as disease and competition, etc.
environmental factors such as storms, fires, extreme temp, etc.
when a population reaches a state where it can no longer grow
Which of the four natural resources listed is likely to be used up the soonest?
petroleum
water
sunlight
wood
Which of the following is an example of increasing biodiversity?
A forest is clear-cut for its wood, leaving land available for new uses.
New species of animals and plants appear in a wildlife preserve.
A new species of plant outcompetes all of the others around a lake.
A cleared rainforest results in a change to a habitat.
Which represents a sustainable practice?
Conservation tillage and use of natural fertilizers
More efficient removal of oil
Allowing unlimited use of water for higher fees
Restocking a lake with fish every year
Renewable resources
Water and wood Soil and sunlight
Cooper and coal Petroleum and Aluminum
Nonrenewable resources
Water and wood Soil and sunlight
Cooper and coal Petroleum and Aluminum
A bird building a nest.
Learned behavior
Innate behavior
A dog fetching a ball.
Learned behavior
Innate behavior
Fish swimming.
Learned behavior
Innate behavior
A bee building a hive.
Learned behavior
Innate behavior
A killer whale doing tricks.
Learned behavior
Innate behavior
Monarch butterfly migration for winter.
Learned behavior
Innate behavior
Aggression and submission
social
territorial
communication
cyclic
Courting and mating
social
territorial
communication
cyclic
Hibernation and migration
social
territorial
communication
cyclic
Pheromones and Sound
social
territorial
communication
cyclic
sea urchin
cnidaria
echinodermata
arthropoda
mollusca
platyhelminthes
butterfly
cnidaria
echinodermata
arthropoda
mollusca
platyhelminthes
starfish
cnidaria
echinodermata
arthropoda
mollusca
platyhelminthes
flatworm
cnidaria
echinodermata
arthropoda
mollusca
platyhelminthes
clam
cnidaria
echinodermata
arthropoda
mollusca
platyhelminthes
