Getting to Know Your Variables (Again!)

Last updated over 2 years ago

9 questions

Getting to Know Your Variables (Again!)

Last updated over 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?

No allergy medicine
The amount of allery medicine
The number of sneezes

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

type of plant
Height of plant (in cm)
amount of sunlight

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

Brand of sunscreen
No sunscreen
skin tone of persons being tested

What paper towel brand absorbs the most water?

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

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

Temperature stove burner is set on.
None (can't cook eggs without a pan)
Size of pans

Ashton wants to see which fast food restaurant has french fries that will take the longest to grow mold.

None (can't test without french fries)
Number of french fries
Time to grow mold (days)

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

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

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

Time spent on activity
Type of physical activity
Sitting (no activity)

What type of detergent gets out grass stains the best?

Size of original stain
washed in water without detergent
Brand of detergent