This is a variable that does not get changed and is used to compare to variables that did receive a change.
Control or control group
What is the fastest animal that lives on land?
Peregrine falcon! Clocked at 242 miles per hour
Time can sometimes be this variable. Usually shown on the X axis of a graph
Independent variable
Is this allele pairing heterozygous or homozygous?
AA
Homozygous! (dominant)
This is a common tool used to measure mass.
What is a scale?
This variable is what is measured in response to a purposeful change.
Dependent variable
What/Where is the STRONGEST muscle in the body?
The HEART
(It has been pumping NONSTOP your whole life!)
L is the abbreviation for this.
What is liters?
This tool is best to use for measuring liquid volume?
What is a graduated cylinder?
This variable is changed on purpose to see what effect is has on the outcome?
Independent variable
Is Mrs. Nystrom's baby due at the end of February a boy or a girl?
A boy!
mL is the abbreviation for this.
What is milliliters?
I'm not a tool but the formula for volume of a cube
V = Length x Width x Height
This variable is (most of the time) shown on the Y axis of a graph
Dependent variable
What classification of animal lives on both land and water?
An amphibian