Experimental Variables

Front

What is the independent variable in an investigation testing the effect of shoe color on running speed?

Back

Shoe color

Front

What is the dependent variable in the investigation of the effect of shoe sole material on running speed?

Back

Running speed

Front

Hypothesis: If we increase the length of string on a pendulum, then it will take a longer time period to make one complete cycle back and forth. What is the independent variable in this investigation? Options: Time period, Number of cycles, Length of string, Amount of mass on end of string

Back

Length of string

Front

Hypothesis: If we increase the length of string on a pendulum, then it will a take longer time period to make one complete cycle back and forth. What is the dependent variable in this investigation?

Back

Time period

Front

What is the independent variable in the investigation of the effect of different amounts of mass on the flight length of one specific paper airplane design? Options: Flight length, Airplane design, Amount of mass, Force of throw

Back

Amount of mass

Front

What is the dependent variable in the investigation of the effect of different color paper on the flight length of a paper airplane?

Back

Flight length

Front

What is the independent variable in the hypothesis: If pine tree seedlings have a biodegradable root container, then they will grow faster than seedlings with bare roots?

Back

Root treatment

Front

Hypothesis: If pine tree seedlings have a biodegradable root container, then they will grow faster than seedlings with bare roots. What is the dependent variable in this investigation?

Back

Tree growth

Front

The type of variable that you change or manipulate in an experiment. It is what you are testing.

Back

Independent

Front

The type of variable that responds to the experiment and is what you measure to determine if your hypothesis is true.

Back

Dependent