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20 questions
Dr. Eversole sets up an experiment on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the independent variable?
Type of plant
Water, apple juice, milk
Plant growth
Mr. G normally uses praise as a reward to train his dog. He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands. What is his dependent variable?
Type of reward
Praise
Type of dog
Amount of time the dog follows commands
Mrs. Register sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the constant.
distance traveled by the ball
height of the ramp
mass of the ball
weight of the ball
What is the dependent variable (effect) is this experiment?
"Does eating breakfast improve test score?"
eating breakfast or not
the grade you got on the test
what time you get up in the morning
how tasty the breakfast is
What is the independent variable (cause) is this experiment?
"Which type of medium (soil or sand) is best for plant growth?"
height of plant (cm)
type of medium (soil or sand)
amount of medium (soil or sand)
types of plant
What is the dependent variable (effect) in this experiment?
"Do tall people jump further than short people?"
height of the person
weight of the person
how fast the person runs
how far the person jumps
What is the independent variable (cause) in this experiment?
"Which type of metal, copper or aluminum, conducts heat faster?"
size of metal
types of metal
time it takes to heat up
shape of the metal
Which variable is NOT a constant in this experiment?
"Is Bounty paper towels more absorbent than Sparkle paper towels?
the size of paper towel
the amount of water for the paper towel to absorb
amount of water the paper towel absorbed
the shape of paper towel
What is the independent variable (cause) in this experiment?
"Will fish school or group together more if a predator is present?"
whether there is a predator or not
number of fish school together
type of predator
type of fish
Janet wants to see whether drinking coffee will improve productivity. What is the independent variable in this experiment (cause)?
increase productivity
Having coffee or not
the brand of coffee
the time drinking the coffee
Matias wanted to see if his dog would lose weight if he took the dog for a walk twice a day instead of just once a day. What is the independent variable in this situation?
The breed of dog
The dog's weight
How many times they go for a walk each day
How fast they walked
Matias wanted to see if his dog would lose weight if he took the dog for a walk twice a day instead of just once a day. What is the dependent variable in this situation?
The breed of dog
The dog's weight
How many times they go for a walk each day
How fast they walked
Ariel wanted to find out if thingamabobs or thingamajigs were better for brushing her hair. What is the dependent variable in this situation?
What Ariel used to brush her hair
How well her hair was brushed
The shampoo she uses
How often she brushes her hair
Ariel wanted to find out if thingamabobs or thingamajigs were better for brushing her hair. What is the independent variable in this situation?
What Ariel used to brush her hair
How well her hair was brushed
The shampoo she uses
How often she brushes her hair
A factor or condition that is changed on purpose is called the
control variable
dependent variable
independent variable
A factor or condition that is tested or measured is called the
control variable
dependent variable
independent variable
A factor or condition that is kept the same is called the
control variable
dependent variable
independent variable
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