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?

The time of day medicine is taken
The number of sneezes
The amount of allery medicine

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

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

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

Brand of sunscreen
Time of day
amount of sunscreen used

What paper towel brand absorbs the most water?

None (need a paper towel to absorb any water)
Amount of water absorbed (mL)
Brand of paper towel.

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

Temperature stove burner is set on.
Size of eggs
Minutes until egg is cooked

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

Handle french fries with gloved hands
Time to grow mold (days)
None (can't test without french fries)

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

Brand of dish soap.
Time water and soap is stirred
None (need suds to make bubbles)

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

Heart rate (beats per minute)
Type of physical activity
Outside temperature

What type of detergent gets out grass stains the best?

Brand of detergent
Area of stain removed (cm^2)
Same wash cycle