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 amount of allery medicine
The person taking the medicine
The time of day medicine is taken

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

Amount of soil
amount of water
No soil

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

Brand of sunscreen
amount of sunscreen used
skin tone of persons being tested

What paper towel brand absorbs the most water?

Size of paper towel
Temperature of water
Brand of paper towel.

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

Size of eggs
Temperature stove burner is set on.
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.

Fries from different restraurants
None (can't test without french fries)
French fries are on the same table

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

Amount of water
Time water and soap is stirred
Brand of dish soap.

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

Person doing the activity
Heart rate (beats per minute)
Outside temperature

What type of detergent gets out grass stains the best?

washed in water without detergent
Brand of detergent
Area of stain removed (cm^2)