I Love Science!
Which device is used to determine the volume of a liquid?
A anemometer
B graduated cylinder
C test tube
D thermometer
B graduated cylinder
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
Which statement best describes how a multicellular organism survives?
A Every cell carries out the same functions for the survival of the organism.
B The cells all have the same structures that allow the organism to survive.
C All life processes are performed by each cell for the survival of the organism.
D The cells have different functions, and together they are essential for the survival of the organism.
D The cells have different functions, and together they are essential for the survival of the organism.
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
Why are liquids sometimes used in a thermometer?
A because most liquids condense when heated and evaporate when cooled
B because most liquids melt when heated and freeze when cooled
C because most liquids contract when heated and expand when cooled
D because most liquids expand when heated and contract when cooled
D because most liquids expand when heated and contract when cooled
A wagon is pushed in a straight line. How would an increase in friction on the wagon wheels affect the wagon?
A It would cause the wagon to move faster.
B It would cause the wagon to change mass.
C It would cause the wagon to change direction.
D It would cause the wagon to slow down.
D It would cause the wagon to slow down.
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
What is the relationship between the respiratory system and the circulatory system?
A The respiratory system exchanges oxygen and carbon dioxide with the circulatory system.
B The respiratory system exchanges oxygen and carbon monoxide with the circulatory system.
C The respiratory system exchanges oxygen and sugar with the circulatory system.
D The respiratory system exchanges oxygen and nitrogen with the circulatory system.
A The respiratory system exchanges oxygen and carbon dioxide with the circulatory system.
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
On a June day, a warm, moist air mass slowly passes over a colder air mass in North Carolina. What will most likely happen next?
A Rain will fall.
B Cirrus clouds will form.
C Skies will clear.
D Atmospheric pressure will rise.
A Rain will fall.
A runner measured the time it took him to run 5 km. What can he calculate from the distance and time measurements?
A direction
B mass
C speed
D force
C speed
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
Which classification best describes herbivores?
A producers
B consumers
C predators
D decomposers
B consumers
Which best describes a hurricane?
A a low-pressure weather system
B a high-pressure weather system
C a cold front
D a stationary front
A a low-pressure weather system
Which is most responsible for the movement of weather systems across the United States?
A the Gulf Stream
B the prevailing westerlies
C the southeast trade winds
D the jet stream
B the prevailing westerlies
Which best explains why a bicycle slows down when its brakes are applied?
A The brakes heat the rubber on the bicycle tires.
B The brakes add energy to the bicycle.
C The brakes increase the force of gravity on the bicycle.
D The brakes cause frictional forces on the wheels of the bicycle.
D The brakes cause frictional forces on the wheels of the bicycle.
Which type of animal usually eats both producers and consumers?
A an omnivore
B a carnivore
C a herbivore
D a predator
A an omnivore
A mother rabbit has a litter. One of the babies is born with one long ear and one short ear. What most likely caused this one rabbit to be born with one short ear?
A The mother rabbit had previously lost an ear in an accident.
B The mother rabbit became sick before she gave birth.
C A mutation occurred during the development of this one rabbit.
D This one rabbit received less nutrition than the other rabbits before it was born.
C A mutation occurred during the development of this one rabbit.
Which instrument is best used to predict weather changes?
A a hygrometer
B an anemometer
C a thermometer
D a barometer
D a barometer
Which human body systems are located throughout most of the body?
A digestive and respiratory
B skeletal and respiratory
C nervous and circulatory
D respiratory and circulatory
C nervous and circulatory
When the sun warms water, which resulting process occurs?
A precipitation
B runoff
C evaporation
D condensation
C evaporation
Which best explains why a storm that affects an area in the western United States may affect an area in the eastern United States a few days later?
A The jet stream winds blow storms from east to west.
B The jet stream winds blow storms from west to east.
C Cool Gulf Stream water causes storms to form in the east.
D Warm Gulf Stream water causes storms to form in the west.
B The jet stream winds blow storms from west to east.
Scientists discover an asteroid that is moving through space. What information is needed to determine the average speed of the asteroid?
A the mass and size of the asteroid
B the distance the asteroid is from Earth
C the direction the asteroid is moving and its distance from Earth
D how far the asteroid has moved in 24 hours
D how far the asteroid has moved in 24 hours
How do plants return water back into the environment?
A by evaporation
B by condensation
C by runoff
D by transpiration
D by transpiration
Which statement best describes the relationship between the nervous system and the muscular system?
A The nervous system controls the muscular system.
B The muscular system controls the nervous system.
C The nervous system provides nutrients and oxygen for the muscular system.
D The muscular system provides nutrients and oxygen for the nervous system.
A The nervous system controls the muscular system.