Heat Transfer
Matter & Changes
Genetics
Weather
Food Chains/Webs
100
Which is the best example of the transfer of heat by radiation?
A water boiling
B ice melting
C a hot air balloon rising
D a lightbulb glowing
D a lightbulb glowing
100
Water is being boiled on the stove. What is the change that is taking place?
A. A solid is changing into a gas.
B. A liquid is changing into a gas.
C. A solid is changing into a liquid.
B. A liquid is changing into a gas.
100
Which is an example of a trait that is inherited?
A dimples
B intelligence
C weight
D favorite color
A dimples
100
When the sun warms water, which resulting process occurs?
A precipitation
B runoff
C evaporation
D condensation
C evaporation
100
A mouse eats seeds and insects. Which best describes the role of the mouse?
A consumer
B decomposer
C herbivore
D producer
C herbivore
200
Stirring a cup of hot tea causes a metal spoon to get warm. Which statement best explains why the spoon gets warm?
A Heat energy transfers from the metal spoon to the hot liquid.
B Heat energy transfers from the hot tea to the spoon.
C Heat energy transfers from the air to the hot liquid, and then to the spoon.
D Heat energy transfers from the hot liquid to the cup, and then to the spoon.
B Heat energy transfers from the hot tea to the spoon.
200
Students observed a piece of iron change from shiny to rusty. What caused this change?
A a chemical reaction
B a heat reaction
C a cold reaction
D a physical reaction
A a chemical reaction
200
Which is an example of a noninherited trait?
A shape of face
B hair color
C food preference
D tongue rolling
C food preference
200
Students report that the sky in their area has mostly cirrus clouds. What are most likely the weather conditions in the area?
A rainy
B cold
C windy
D fair
D fair
200
This is a food chain that includes grass, a grasshopper, and a bird.
grass → grasshopper → bird
How is the grass in this food chain best described?
A It is a producer, because it makes its own food.
B It is a producer, because it is eaten by consumers.
C It is a consumer, because it gets energy from producers.
D It is a decomposer, because it breaks down sunlight.
A It is a producer, because it makes its own food.
300
Which is the best example of heat transfer by convection?
A. frying bacon in a pan
B. sea breeze at the beach
C. melting ice in your hand
D. burning your finger on the stove
B. sea breeze at the beach
300
Two liquids are poured together, and a solid substance forms with no liquid
remaining. Liquid 1 has a mass of 200 grams, and liquid 2 has a mass of
100 grams. What would be the total mass of the solid substance formed?
A 100 grams
B 150 grams
C 250 grams
D 300 grams
D 300 grams
300
Which of these traits is most influenced by a person’s environment?
A ability to roll the tongue
B blood type
C weight
D eye color
C weight
300
In North Carolina, the wind is blowing from the north. If the wind changes
direction and begins to blow from the south, what will most likely result?
A The temperatures will increase.
B The temperatures will decrease.
C The air pressure will increase.
D The wind speeds will decrease.
A The temperatures will increase.
300
Which would most likely cause a decrease in a population of herbivores?
A an increase in the number of producers
B a decrease in the types of decomposers
C an increase in the types of plants
D an increase in the number of carnivores
D an increase in the number of carnivores
400
How does radiation compare to conduction?
A. Radiation is heat transfer through liquid, and conduction is heat transfer through air.
B. Radiation is heat transfer through materials touching, and conduction is heat transfer through air.
C. Radiation is heat transfer through air, and conduction is heat transfer through liquid.
D. Radiation is heat transfer through air, and conduction is heat transfer through materials touching.
D. Radiation is heat transfer through air, and conduction is heat transfer through materials touching.
400
Jason fills a glass container completely with water and screws the lid on tightly. He places the container in a freezer. Which will most likely result?
A The container will prevent the water from freezing.
B The water will freeze and take up less space in the container.
C The water in the container will expand when it freezes and cause the container to crack.
D The container will absorb heat from the water, causing it to crack.
C The water in the container will expand when it freezes and cause the container to crack.
400
Which is a trait children most likely inherit from their parents?
A favorite color
B food preference
C freckles
D weight
C freckles
400
Which is most responsible for the changes in seasons?
A the jet stream
B the ocean currents
C the distance from Earth to the sun
D the tilt of Earth on its axis
D the tilt of Earth on its axis
400
A food chain in an ecosystem includes blackberry bushes, deer, and wolves.
• Deer eat blackberries.
• Wolves eat deer.
If the population of wolves decreases, how will this affect the population of blackberry bushes?
A It will decrease because there will be fewer deer.
B It will increase because there will be fewer deer.
C It will decrease because there will be more deer.
D It will increase because there will be more deer.
C It will decrease because there will be more deer.
500
Which material is best used to keep cold drinks from getting warm too quickly?
A glass, because it is a good conductor of heat
B foam, because it is a poor conductor of heat
C metal, because it radiates heat
D paper, because it conducts heat
B foam, because it is a poor conductor of heat
500
Which is the best example of a new substance forming?
A lighting a match
B cutting a piece of paper
C popping a balloon
D hitting a nail with a hammer
A lighting a match
500
Which is most likely the reason parents and their children have similar physical traits?
A They live in the same home.
B They have similar genetic structures.
C They are born in similar environments.
D They have similar blood types.
B They have similar genetic structures.
500
Which best describes the cause of day-to-day weather changes?
A the rotation of Earth
B the size of Earth
C moving air masses
D action of the winds
C moving air masses
500
When the prey population in an ecosystem increases, which will most likely happen to the predator population?
A. The predator population will die out.
B. The predator population will decrease.
C. The predator population will gradually increase.
D. The predator population will move to another ecosystem.
C. The predator population will gradually increase.
600
Which best explains how Earth’s climate is impacted by convection?
A. Convection helps move thermal energy around the Earth.
B. Convection helps cool the Earth and the atmosphere around it.
C. Convection continuously pumps cool energy through the oceans.
D. Convection stops the flow of cool air and maintains warm weather.
A. Convection helps move thermal energy around the Earth.
600
Eric noticed that when he put ice in his glass of water, the ice floated. Which best explains why this happens?
A. When water freezes it contracts, making the ice lighter than the water.
B. When water freezes the particles break down, making the ice lighter than water.
C. When the water freezes, it turns into a solid, and all solids are lighter than liquids.
D. When the water freezes it expands, making it a less dense mass that is lighter than water.
D. When the water freezes it expands, making it a less dense mass that is lighter than water.
600
Some people have a “hitchhiker’s” thumb that allows them to bend their thumbs
more than other people. How do these people most likely get this trait?
A They learn it from friends.
B They inherit it from their parents.
C They get it as a result of an illness.
D They get it as a result of their jobs.
B They inherit it from their parents.
600
One morning, a student notices that the grass in the area is wet, although it had not rained during the night. What could have caused the grass to be wet?
A During the night, water had evaporated from the trees in the area.
B The air above the ground became warmer during the night and caused precipitation.
C When the air cooled above ground during the night, water vapor condensed on the grass.
D The grass soaked up water from the ground during the night.
C When the air cooled above ground during the night, water vapor condensed on the grass.
600
The diagram shows a food web in an ecosystem.
The removal of which organism would result in the most damage to the ecosystem?
A. fox
B. rabbit
C. grasshopper
D. grass
D. grass