which of these individuals would be more healthy?

Choices:
A. a student who sleeps two hours daily
B. a teacher who sleeps eight hours a day
C. a woman who sleeps three hours a day
D. a man who practices sleep deprivation

Answer: B


pushing against a rolling boulder will decrease its

Choices:
A. size
B. height
C. impetus
D. ambitions

a force acting on an object in the opposite direction that the object is moving can cause that object 's speed to decrease in a forward motion

Answer: C


Choices:
A. underwater
B. closer together
C. in lines
D. farther apart

Answer: D


Choices:
A. sending light signals
B. sending goods
C. none of these
D. transferring signals

Answer: D


If something good is increased, survival of organisms needing it increase, such as when

Choices:
A. cars get food
B. kittens get yarn
C. babies get toys
D. amoeba get nutrients

the increase of something required by an organism has a positive impact on that organism 's survival

Answer: D


Turning beef from red to brown requires energy from

Choices:
A. heat
B. sound
C. color
D. light

cooking food requires adding heat energy

Answer: A


A person is travelling and needs to know how much further to go, so for the remainder of the trip, he is

Choices:
A. distance in millimeters
B. noting in meters
C. using square feet
D. measuring with inches

meters m are a unit used for measuring distance generally used for values between 1 and 1000

Answer: B


Choices:
A. Grass
B. Asphalt
C. Water
D. Aggregate minerals

Answer: D


A plant can germinate in another place when a person rubs against its

Choices:
A. flowers
B. roots
C. leaves
D. stems

Answer: A


A frog reproduces with some other frogs, then watches over the potential offspring which are

Choices:
A. born life and moving
B. floating in outer space
C. resting in sacs on leaves
D. melted in the rain

Answer: C


What room in a house would signify the excretory system?

Choices:
A. dining room
B. bathroom
C. living room
D. kitchen

the excretory system removes waste from the body

Answer: B


If a tree burns down, it can be made right by

Choices:
A. buying a plastic tree
B. visiting a rain forest
C. reading about it in the paper
D. placing seed in dirt

a tree can be replaced by planting a new tree

Answer: D


What role does the first step in the food chain have?

Choices:
A. secondary consumer
B. decomposer
C. consumer
D. producer

In the food chain process a green plant has the role of producer

Answer: D


Choices:
A. equally distant from the melting and boiling points
B. closer to the boiling point of water
C. closer to the melting point of ice
D. below the melting point of ice

melting point means temperature at which a solid melts

Answer: A


Choices:
A. Growing a plant
B. Building a car
C. Water changing temperatures
D. Jello's transformation

temperature changing can cause phase changes

Answer: D


Choices:
A. tending to their homes
B. sleeping in hollow logs
C. scanning their territory for field mice
D. hanging out with other owls

nocturnal predators hunt during the night

Answer: C