WorksheetsVariables - Basic
Total questions: 10
Worksheet time: 5mins
Which is the independent variable?
The one we keep the same all the time
The one we measure
The one we deliberately change to test its effect
Ben wants to test whether his plant prefers flat or fizzy water. His IV is how much the plant grows
True
False
Sam does the same experiment as Ben, but with soft drink and fizzy water. Which variable has she changed?
Independent variable
Dependent variable
Controlled variable
She changed nothing
Greg tests whether the height of a ramp changes the speed of the car. His dependent variable is:
Height of ramp
Speed of car
Speed of ramp
Height of car
For the car experiment to be fair which variables need to be controlled?
Height of ramp
Speed of car
Type of car
Starting point of car
Alex wants to know what rots your teeth more, so leaves one baby tooth in coke, one in milk, one in water
His IV is the amount of rot on the tooth
His IV is the type of liquid the tooth goes in
His IV is the number of teeth used
His IV is the amount of staining on the tooth
Phil tests which cubicle is used most often in a public toilet by counting people as they exit each one
His DV is the number of people total
His DV is the number of people who use each cubicle
His DV is the amount of time each is in use
His DV is the number of toilets in the room
Andy wants to know which ball type bounces highest
He needs to control the type of ball used
He needs to control the way the ball is dropped
He needs to control the height the ball is dropped from
He needs to control the size of each ball
Jen wants to know which paper plane design flies furthest
Her DV is the distance the plane flies
Her IV is the height the plane flies
Her DV is the type of plane design
Her IV is the size of the paper used
Freya's favourite dog breed is malamutes. She shows photos to test how many agree with her. Choose the best method:
Freya chooses ugly photos of each dog breed except malamutes
Freya makes every photo of malamutes
Freya includes photos of three breeds, all very similar to malamutes
Freya includes 10 photos of 10 different dog breeds
