Getting to Know Your Variables (Again!)

Last updated about 2 years ago

9 questions

Getting to Know Your Variables (Again!)

Last updated about 2 years ago

9 questions

For each experimental question, identify the independent variable (IV), dependent variable (DV), constants and the control.

For Each, Ask Yourself:
What am I changing on purpose so that I can answer my question? -- this is your Independent Variable.
What is being 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 your zero IV level? What is your normal group that does not recieve any testing.---This is your Control

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
No allergy medicine

Does the amount of soil a plant is placed in affect how tall it grows?

Amount of soil
No soil
Height of plant (in cm)

Which type of sunscreen prevents burns for the longest amount of time?

Brand of sunscreen
Time to burn (minutes)
Time of day

What paper towel brand absorbs the most water?

Brand of paper towel.
Surface water is spilled on
None (need a paper towel to absorb any water)

Sam wants to figure out which pan cooks eggs the fastest: bronze, copper or steel.

Size of pans
None (can't cook eggs without a pan)
Material pan is made out of.

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

Which brand of dish soap makes the most amount of suds?

Brand of dish soap.
Time water and soap is stirred
Volume of suds (mL)

What type of physical activity gives you the highest heart rate?

Heart rate (beats per minute)
Outside temperature
Time spent on activity

What type of detergent gets out grass stains the best?

Same wash cycle
washed in water without detergent
Type of original stain