Weather
Ecosystems
Energy
Organisms
Force and Motion
100
On a hot summer day, cumulus clouds grow taller and darker. Which type of weather will most likely occur?
A clear skies
B a hurricane
C a thunderstorm
D several snowy days
C a thunderstorm
100
A rabbit depends on various plants in an ecosystem to survive. Which would most likely happen if a drought decreased the plant population?
A The rabbit population would increase.
B The rabbit population would decrease.
C The rabbit population would remain the same.
D The rabbit population would increase, then decrease quickly.
B The rabbit population would decrease.
100
Which best describes an example of heat transfer through radiation?
A getting warm in front of a portable heater
B burning your finger on a curling iron
C ironing a dress shirt and tie
D cooking soup on the stove
A getting warm in front of a portable heater
100
What is the difference between single-celled organisms’ and multicellular organisms’ ability to survive?
A Multicellular organisms depend on other organisms for survival, while single-celled organisms do not.
B Single-celled organisms depend on other organisms for survival, while multicellular organisms do not.
C Single-celled organisms contain many specialized cells necessary for survival, while multicellular organisms do not.
D Multicellular organisms contain many specialized cells necessary for survival, while single-celled organisms can survive alone.
D Multicellular organisms contain many specialized cells necessary for survival, while single-celled organisms can survive alone.
100
Macie’s job at the bookstore requires her to move several heavy boxes of books. How can Macie use the least amount of force to move the boxes?
A by packing the books in larger boxes
B by packing the books in smaller boxes
C by stacking the boxes and pulling them out of the storage room
D by stacking the boxes and pushing them out of the storage room
B by packing the books in smaller boxes
200
Which conditions are needed for a hurricane to form?
A warm, dry air rising over warm areas on the land
B warm, dry air rising over warm areas in the ocean
C warm, moist air rising over warm areas on the land
D warm, moist air rising over warm areas in the ocean
D warm, moist air rising over warm areas in the ocean
200
This diagram shows a simple ocean food chain.
algae → fish → seal
Which will most likely occur if the fish population decreases?
A The algae and seal populations will increase.
B The algae and seal populations will decrease.
C The algae population will increase, and the seal population will increase.
D The algae population will increase, and the seal population will decrease.
D The algae population will increase, and the seal population will decrease.
200
Which container used for cooking food would best conduct heat?
A a container made of foam
B a container made of glass
C a container made of metal
D a container made of plastic
C a container made of metal
200
Which accurately explains how an organism is capable of survival?
A An amoeba can perform all of life’s processes even though it is single-celled.
B A grasshopper can live off only one food source even though it is single-celled.
C A fish can exist if it lives in a group with many organisms even though it is single-celled.
D An earthworm can survive by using its long, straight digestive system even though it is single-celled.
A An amoeba can perform all of life’s processes even though it is single-celled.
200
Which item will require the most force to move?
A an empty wagon
B a wagon full of bricks
C a wagon full of apples
D a wagon full of feathers
B a wagon full of bricks
300
Chris noticed a high-pressure system in the weather forecast for Monday and Tuesday. Which type of weather conditions are most likely for those two days?
A clear and sunny
B cold and stormy
C cloudy and rainy
D warm and stormy
A clear and sunny
300
Why are animals like deer, raccoons, bears, and coyotes sometimes seen in neighborhoods?
A because it is easier to find food
B because they can escape predators
C because their habitats are increasing
D because their habitats are decreasing
D because their habitats are decreasing
300
Why are pots used for cooking made of metal?
A Metal is an excellent conductor of heat.
B Metal makes the handle look attractive.
C Metal is a poor conductor of heat.
D Metal is natural and inexpensive.
A Metal is an excellent conductor of heat.
300
Which best explains why a human needs many cells to survive?
A Each individual cell is too small to function alone.
B Each cell joins with other cells to form one massive cell.
C Each cell works with other cells to perform all necessary life functions.
D Each cell absorbs a different gas from the environment necessary for human survival.
C Each cell works with other cells to perform all necessary life functions.
300
This graph shows the movement of an object.
When is the biggest decrease in movement?
A between seconds 0 and 1
B between seconds 1 and 2
C between seconds 2 and 5
D between seconds 5 and 6
D between seconds 5 and 6
400
On a cold winter day with temperatures below 32°F, the local meteorologist records falling air pressure. Which type of weather will most likely occur?
A rain
B clear skies
C a snowstorm
D a thunderstorm
C a snowstorm
400
This is an aquatic food chain.
Which situation will most likely occur if the pond is polluted?
A The tadpole population will decrease while the others will remain the same.
B The algae population will decrease while the others will remain the same.
C The algae, tadpole, and perch populations will decrease.
D The algae, tadpole, and perch populations will increase.
C The algae, tadpole, and perch populations will decrease.
400
Which best describes how heat moves from one solid to another solid?
A through conduction
B through convection
C through insulation
D through radiation
A through conduction
400
How are the skeletal and circulatory systems alike?
A They help give the body shape.
B They help the body make oxygen.
C They help the body remove waste.
D They help the body produce new blood.
D They help the body produce new blood.
400
How will the force needed to move an object be affected if the mass of the object changes from 100 kilograms to 200 kilograms?
A The force needed to move the object would be tripled.
B The force needed to move the object would be doubled.
C The force needed to move the object would remain the same.
D The force needed to move the object would be reduced by half.
B The force needed to move the object would be doubled.
500
Which is most responsible for moderating weather along the North Carolina coast?
A La Niña
B the jet stream
C the Gulf Stream
D prevailing westerlies
C the Gulf Stream
500
Which organisms are most likely found in grasslands and deciduous forests?
A deer, brown bears, and rabbits
B pelicans, sea lions, and seaweed
C monkeys, palm trees, and snakes
D oak trees, squirrels, and opossums
A deer, brown bears, and rabbits
500
When a warm plate is placed onto a cool counter, which most likely occurs?
A The plate gains heat and the countertop gains heat.
B The plate loses heat and the countertop gains heat.
C The plate gains heat and the countertop loses heat.
D The plate loses heat and the countertop loses heat.
B The plate loses heat and the countertop gains heat.
500
For which function do the respiratory and muscular systems need to work together?
A hearing sounds
B processing thoughts
C making new blood cells
D removing waste from the body
D removing waste from the body
500
A student went on a walk, and kept track of their time and distance. The data is displayed in the graph. Which best describes the student’s walk?
A The student went up a hill, and then down a hill.
B The student walked very quickly at the beginning of the walk, but then slowed down at the end.
C The student walked slowly at the beginning of the walk, and faster at the end.
D The student walked at a steady pace, and then returned to the starting point.
D The student walked at a steady pace, and then returned to the starting point.