Log in
Sign up for FREE
arrow_back
Library
Getting to Know Your Variables (Again!)
By Samantha Martin-Langmaid
star
star
star
star
star
Share
share
Last updated over 2 years ago
9 questions
Add this activity
1
1
1
1
1
1
1
1
1
For each experimental question, identify the independent variable (IV), dependent variable (DV), constants and the control.
For Each, Ask Yourself:
What amÂ
I
changing
on purpose so thatÂ
I
can answer my question? -- this is your
Independent Variable
.
What is beingÂ
measured
? What data (numbers) are being collected? --this is your
Dependent Variable
.
What is
staying the same
in all of the exeriments? -- these are your
Constants
.
What is yourÂ
zero IV level
? What is your normal group that does not recieve any testing.---This is your
Control
Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
Question 9
9.
Does the brand of allergy medication affect the number of times a person sneezes?
No allergy medicine
The time of day medicine is taken
The brand of medicine
The amount of allery medicine
The number of sneezes
The person taking the medicine
Independant Variable
Dependent Variable
Constants (3)
Control
Does the amount of soil a plant is placed in affect how tall it grows?
amount of sunlight
Amount of soil
type of plant
Height of plant (in cm)
No soil
amount of water
Independant Variable
Dependent Variable
Constants (3)
Control
Which type of sunscreen prevents burns for the longest amount of time?
skin tone of persons being tested
Time to burn (minutes)
Brand of sunscreen
No sunscreen
amount of sunscreen used
Time of day
Independant Variable
Dependent Variable
Constants (3)
Control
What paper towel brand absorbs the most water?
Temperature of water
Brand of paper towel.
None (need a paper towel to absorb any water)
Amount of water absorbed (mL)
Size of paper towel
Surface water is spilled on
Independant Variable
Dependent Variable
Constants (3)
Control
Sam wants to figure out which pan cooks eggs the fastest: bronze, copper or steel.
None (can't cook eggs without a pan)
Size of pans
Material pan is made out of.
Temperature stove burner is set on.
Size of eggs
Minutes until egg is cooked
Independant Variable
Dependent Variable
Constants (3)
Control
Ashton wants to see which fast food restaurant has french fries that will take the longest to grow mold.
Number of french fries
French fries are on the same table
None (can't test without french fries)
Handle french fries with gloved hands
Time to grow mold (days)
Fries from different restraurants
Independant Variable
Dependent Variable
Constants (3)
Control
Which brand of dish soap makes the most amount of suds?
Amount of water
None (need suds to make bubbles)
Time water and soap is stirred
Volume of suds (mL)
Brand of dish soap.
Amount of dish soap
Independant Variable
Dependent Variable
Constants (3)
Control
What type of physical activity gives you the highest heart rate?
Heart rate (beats per minute)
Time spent on activity
Type of physical activity
Person doing the activity
Outside temperature
Sitting (no activity)
Independant Variable
Dependent Variable
Constants (3)
Control
What type of detergent gets out grass stains the best?
Area of stain removed (cm^2)
washed in water without detergent
Size of original stain
Same wash cycle
Brand of detergent
Type of original stain
Independant Variable
Dependent Variable
Constants (3)
Control