WorksheetsMidterm REVIEW Dec-9
Total questions: 70
Worksheet time: 52mins
Identical amounts of warm water were placed in three different containers—foam, glass, and metal—and monitored for 10 minutes. Which is the most effective conductor of thermal energy?
Glass
Metal
Foam
When a substance is cooled, what happens to the motion of its particles?
Kinetic energy increases and particles move faster
Potential energy increases while motion stays constant
Kinetic energy decreases and particles move slower
Which is an example of conduction?
Boiling water warms a metal spoon in the pot
Sunlight travels from the Sun to Earth
A fireplace warms air circulating in a room
You add an ice cube to a warm drink and stir.
After it melts, the drink has the same temperature everywhere.
What has the drink reached?
Thermal equilibrium
Specific heat
Thermal release
How is energy transferred when an instant cold pack is put on a muscle injury?
conduction from the muscle to the cold pack.
absorption from cold pack to the muscle.
radiation from the muscle to the cold pack.
What is the relationship between kinetic energy and temperature?
Kinetic energy and temperature are a 2:3 ratio.
When kinetic energy goes up, temperature goes down
When kinetic energy goes up, temperature goes up
Which best represents conduction as the main type of heat transfer?
A metal pan heating on a stove burner
Sunlight warming your face outdoors
Steam currents swirling in boiling water
CONDUCTION?
CONVECTION?
RADIATION?
In the boiling water image with circular arrows inside the pot, what process moves heat through the water?
Insulation reducing energy transfer
Radiation through empty space
Convection by moving fluid currents
A campfire warms your hands from a distance without touching the flames. Which heat transfer explains this?
Conduction through the surrounding air
Convection within solid firewood
Radiation by electromagnetic waves
Classify the example: touching a hot seat belt after the car sat in the sun.
Convection in circulating liquids
Insulation blocking heat flow
Conduction between objects in contact
Warm air rises to the ceiling in a heated room. Which process is this?
Conduction across still air layers
Convection due to density changes
Radiation absorbed by furniture
The diagram shows the brain and a long cord running down the back. What is the main function of this system?
send signals between brain and body
circulate blood, nutrients, gases
defend against invading pathogens
Which option shows the correct order from simplest to most complex in living things?
Tissue → cell → organ system → organ → organism
Organism → organ system → organ → tissue → cell
Cell → tissue → organ → organ system → organism
Which is true?
Sexual reproduction creates diversity, improving survival as environments change
Asexual offspring remain identical, thriving as environments keep changing
Both strategies make identical offspring, so survival chances stay the same
All dogs have a common ancestor.
What process most directly produced different breeds over many generations?
Dogs changed themselves intentionally to please owners
Genetic disorders gradually altered traits across all dogs
Selective breeding by humans for desired dog traits
Best explanation for Galapagos Island finches having different beaks:
Each finch species came from unrelated birds arriving at different times
Finches stretched beaks to crack seeds and passed that learned trait
Natural selection favored beaks suited to available food resources
What two roles do mushrooms play in a forest ecosystem?
Breaking down remains of dead plants and animals
Converting energy into a form used by carnivores
Releasing nutrients back into the soil
Which statement best describes the flow of energy through this pyramid?
Tertiary consumers receive less energy because some is lost
Primary consumers pass energy to levels above and below them
Secondary consumers have the most organisms and most energy
Level 2?
primary consumers
secondary consumers
producers
In a simple grass → grasshopper → mouse → owl food chain, which organism is the producer?
Grass
Mouse
Owl
In a simple grass → grasshopper → mouse → owl food chain, which organism is the secondary consumer?
Grass
Mouse
Owl
Energy decreases at each trophic level.
If producer has 1000 energy units, about how much energy is available to the primary consumer?
About 100 units
About 1 unit
About 10 units
Which trophic level does the mouse occupy in the grass → grasshopper → mouse → owl chain?
Secondary consumer
Primary consumer
Producer
Which statement best describes producers and decomposers in ecosystems?
Producers eat consumers; decomposers store energy
Producers recycle nutrients; decomposers create sunlight
Producers make energy-rich food; decomposers recycle nutrients
A coyote dies in a field. Which organism type mainly breaks down the body and returns nutrients to the soil?
Decomposers like bacteria
Primary consumers like deer
Tertiary consumers like owls
Which pair includes two other decomposers that could help break down a dead animal?
Plants and birds
Fungi and worms
Grasshoppers and owls
In a grassland food chain, removing the owl would most likely cause which change first?
An increase in mice
A decrease in grass
A decrease in sunlight
Which statement best describes natural selection?
A cycle where all traits become adaptations over time
A method where organisms choose traits they want to inherit
A process where organisms with helpful traits survive and reproduce more
Why do advantageous traits become more common in future generations?
Individuals with those traits survive and produce more offspring
Predators remove genetic variation from the population
Environments force identical traits on every organism
Which factor provides the raw material for natural selection to act on?
Learned behaviors from parents
Seasonal weather patterns only
Genetic variation within a population
Who is closer related to F?
E
C
A
Who is closer related to F?
E
C
B
tertiary consumer
least amount of energy available
most amount of energy available
gives energy to primary consumers
gives energy to tertiary consumers
conduction
convection
radiation
conduction
convection
radiation
conduction
convection
radiation
High KINETIC energy: (a)
Low KINETIC energy: (a)
high kinetic energy
low kinetic energy
conduction
A
B
C
convection
A
B
C
radiation
A
B
C
high temperature
&
high kinetic energy
low temperature
&
low kinetic energy
electric heater
conduction
convection
radiation
send/receive & analyze information
brain, spinal cord
small intestine, esophagus, stomach
break down food into usable materials
transport materials throughout the body
trachea, alveoli, lungs
cell
1
2
3
4
tissue
1
2
3
4
organ system
1
2
3
4
organism
1
2
3
4
basic unit of structure and function of all living things
1
2
3
4
genetic diversity
Sexual Reproduction
Asexual Reproduction
variation
Sexual Reproduction
Asexual Reproduction
unable to adapt to a changing environment
Sexual Reproduction
Asexual Reproduction
good traits become more common - able to survive long enough to reproduce and pass on the good traits
natural selection
artificial selection
who lives long enough to reproduce?
ones with advantageous traits
ones with disadvantageous traits
who inherits advantageous traits?
species with variation
species with no variations
