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?
The time of day medicine is taken
The brand of medicine
The amount of allery medicine
The person taking the medicine
The number of sneezes
No allergy medicine
Independant Variable
Dependent Variable
Constants (3)
Control
Does the amount of soil a plant is placed in affect how tall it grows?
type of plant
Amount of soil
amount of sunlight
No soil
amount of water
Height of plant (in cm)
Independant Variable
Dependent Variable
Constants (3)
Control
Which type of sunscreen prevents burns for the longest amount of time?
amount of sunscreen used
skin tone of persons being tested
Brand of sunscreen
Time of day
Time to burn (minutes)
No sunscreen
Independant Variable
Dependent Variable
Constants (3)
Control
What paper towel brand absorbs the most water?
None (need a paper towel to absorb any water)
Brand of paper towel.
Size of paper towel
Surface water is spilled on
Amount of water absorbed (mL)
Temperature of water
Independant Variable
Dependent Variable
Constants (3)
Control
Sam wants to figure out which pan cooks eggs the fastest: bronze, copper or steel.
Material pan is made out of.
None (can't cook eggs without a pan)
Temperature stove burner is set on.
Minutes until egg is cooked
Size of eggs
Size of pans
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.
Time to grow mold (days)
Fries from different restraurants
Handle french fries with gloved hands
Number of french fries
French fries are on the same table
None (can't test without french fries)
Independant Variable
Dependent Variable
Constants (3)
Control
Which brand of dish soap makes the most amount of suds?
Amount of dish soap
Brand of dish soap.
Amount of water
None (need suds to make bubbles)
Volume of suds (mL)
Time water and soap is stirred
Independant Variable
Dependent Variable
Constants (3)
Control
What type of physical activity gives you the highest heart rate?
Type of physical activity
Heart rate (beats per minute)
Person doing the activity
Outside temperature
Time spent on activity
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)
Brand of detergent
Same wash cycle
Type of original stain
washed in water without detergent
Size of original stain
Independant Variable
Dependent Variable
Constants (3)
Control