WorksheetsScience Variables
Total questions: 14
Worksheet time: 1hrs 10mins
A researcher did an investigation to see if corn seeds would sprout at different times depending on three different water temperatures in which they were placed. What is the independent (also known as the manipulated) variable?
How long to sprout
Type of seed used
Water temperatures
How much water used
A study was done to see if different tire treads affect the braking distance of a car.
What is the dependent (or responding) variable?
Tire treads
Braking distance
Road conditions
Model of car
An investigation found that more potatoes would be produced on a farm if the soil was fertilized more.
What is a controlled variable?
Number of potatoes
Amount of fertilizer
Science
The location of the farm
Students measured the temperature of the water at different depths in Lake Skywalker and found that the temperature varied.
What was the dependent (or responding) variable?
Time
Temperature
Student taking the measurement
Water depth
Identify the INDEPENDENT (manipulated) VARIABLE : You experiment to see if a bouncy ball or a tennis ball bounces higher.
Type of ball
Same drop height
Height of bounce
Same surface
Identify the DEPENDENT (responding) VARIABLE: You experiment to see if the type of liquid changes how fast it can drain out of the tornado tube
Amount of liquid
Type of liquid
Technique of swirl
Speed to drain
What you measure or observe in an experiment.
constant variable
controlled variable
dependent variable
independent variable
The ONE thing you change in an experiment.
independent (manipulated) variable
controlled variable
dependent (responding) variable
All the things that have to stay the same in an experiment (except for the one thing you change).
independent variable
controlled variable
dependent variable
Justin wants to determine the effect of fertilizer on the growth of grass. What is the independent (manipulated) variable?
amount of fertilizer
height of grass
type of plant
time
Justin wants to determine the effect of fertilizer on the growth of grass. What is the dependent (responding) variable?
amount of fertilizer
height of grass
type of plant
time
Randell wants to determine if salt in the water has an effect on his goldfish. What is the independent (manipulated) variable?
how much salt is in the water
temperature
health of his goldfish
amount of algae in the tank
Joe wants to determine the effect of pesticides on the size of apples in the orchard. What is the independent (manipulated) variable?
amount of bugs
size of apples
use of pesticides
number of apples
Beth wants to know if increasing her exercise will decrease the time it takes her to run a mile. What is the independent (manipulated) variable?
distance
amount of exercise
time to run a mile
heart rate
