Goal - I can recognize the dependent variable, independent variable, and control variable(s) given an experiment.

STOP: If you didn't watch the video yet then click TBD.

Key Terms

-Variable: An element, feature, or factor that can vary or change (i.e. boat width, foot length, etc.)

-Dependent Variable: A variable whose ability to change depends on another variable and is measured.

-Independent Variable: A value not dependent on another value but directly changed by an experimenter.

-Control Variable: A variable that is kept the same throughout an experiment to avoid affecting the results.

*Scientific experiments can have many control variables but only one variable can be directly changed (independent)

and for simplicity we will allow only one measured variable (dependent). All other variables should be controlled.

1

Select all the things that can changed in this experiment below. Remember to select ALL that apply.
Experiment: Students drop a ball from different heights and record the falling time.

type of ball used

height of the ramp

drop height of ball

falling time of ball

1

Identify the independent variable in the experiment below.
Experiment: Students drop a ball from different heights and record the falling time.

type of ball used

falling time of ball

drop height of ball

1

Identify the dependent variable in the experiment below.
Experiment: Students drop a ball from different heights and record the falling time.

type of ball used

falling time of ball

drop height of ball

1

Identify a control variable in the experiment below.
Experiment: Students drop a ball from different heights and record the falling time.

type of ball used

falling time of ball used

drop height of ball used

1

Select all the things that can be changed in this experiment below. Remember to select ALL that apply.
Experiment: A study was done to find if different tire treads affect the braking distance of a car.

braking distance of car

type of car used

the size of the ball

type of tire tread

1

Identify the independent variable in the experiment below.
Experiment: A study was done to find if different tire treads affect the braking distance of a car.

type of tire tread

braking distance of car

type of car used

1

Identify the dependent variable in the experiment below.
Experiment: A study was done to find if different tire treads affect the braking distance of a car.

type of tire tread

braking distance of car

type of car used

1

Identify a control variable in the experiment below.
Experiment: A study was done to find if different tire treads affect the braking distance of a car.

type of tire tread

braking distance of car

type of car used

1

Select all the things that can changed in this experiment below. Remember to select ALL that apply.
Experiment: A toy car is turned on travelling a distance and then turned off some time later.

type of toy car

distance travelled by toy car

travel time of toy car

amount of water used

EXTRA PRACTICE (Not Required)

1

Key Term
-Scientific Hypothesis: A specific and testable prediction about the results of an experiment.
-------------------------------------------------------------------------------------
Identify a scientific hypothesis that can be tested by the experiment below.
Experiment: Students drop a ball from different heights and record the falling time.

Scientific hypothesis: If the weight of the ball increases then the falling time will decrease.

Scientific hypothesis: If the drop height of the ball increases then the falling time will increase.

Scientific hypothesis: If the temperature of the oven air increases then the baking time for the cake will decrease.

10/5 Prac1_Experiment & Variables_ct - ETM

Goal - I can recognize the dependent variable, independent variable, and control variable(s) given an experiment.

STOP: If you didn't watch the video yet then click TBD.

EXTRA PRACTICE (Not Required)

10/5 Prac1_Experiment & Variables_ct - ETM

Goal - I can recognize the dependent variable, independent variable, and control variable(s) given an experiment.

STOP: If you didn't watch the video yet then click TBD.

Key Terms

-Variable: An element, feature, or factor that can vary or change (i.e. boat width, foot length, etc.)

-Dependent Variable: A variable whose ability to change depends on another variable and is measured.

-Independent Variable: A value not dependent on another value but directly changed by an experimenter.

-Control Variable: A variable that is kept the same throughout an experiment to avoid affecting the results.

*Scientific experiments can have many control variables but only one variable can be directly changed (independent)

and for simplicity we will allow only one measured variable (dependent). All other variables should be controlled.

Select all the things that can changed in this experiment below. Remember to select ALL that apply. Experiment: Students drop a ball from different heights and record the falling time.

Select all the things that can changed in this experiment below. Remember to select ALL that apply.

Experiment: Students drop a ball from different heights and record the falling time.

Identify the independent variable in the experiment below. Experiment: Students drop a ball from different heights and record the falling time.

Identify the independent variable in the experiment below.

Experiment: Students drop a ball from different heights and record the falling time.

Identify the dependent variable in the experiment below. Experiment: Students drop a ball from different heights and record the falling time.

Identify the dependent variable in the experiment below.

Experiment: Students drop a ball from different heights and record the falling time.

Identify a control variable in the experiment below. Experiment: Students drop a ball from different heights and record the falling time.

Identify a control variable in the experiment below.

Experiment: Students drop a ball from different heights and record the falling time.

Select all the things that can be changed in this experiment below. Remember to select ALL that apply. Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Select all the things that can be changed in this experiment below. Remember to select ALL that apply.

Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify the independent variable in the experiment below. Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify the independent variable in the experiment below.

Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify the dependent variable in the experiment below. Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify the dependent variable in the experiment below.

Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify a control variable in the experiment below. Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify a control variable in the experiment below.

Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Select all the things that can changed in this experiment below. Remember to select ALL that apply. Experiment: A toy car is turned on travelling a distance and then turned off some time later.

Select all the things that can changed in this experiment below. Remember to select ALL that apply.

Experiment: A toy car is turned on travelling a distance and then turned off some time later.

EXTRA PRACTICE (Not Required)

Key Term

-Scientific Hypothesis: A specific and testable prediction about the results of an experiment.

-------------------------------------------------------------------------------------

Identify a scientific hypothesis that can be tested by the experiment below.

Experiment: Students drop a ball from different heights and record the falling time.

Key Terms

-Variable: An element, feature, or factor that can vary or change (i.e. boat width, foot length, etc.)

-Dependent Variable: A variable whose ability to change depends on another variable and is measured.

-Independent Variable: A value not dependent on another value but directly changed by an experimenter.

-Control Variable: A variable that is kept the same throughout an experiment to avoid affecting the results.

*Scientific experiments can have many control variables but only one variable can be directly changed (independent)

and for simplicity we will allow only one measured variable (dependent). All other variables should be controlled.

Select all the things that can changed in this experiment below. Remember to select ALL that apply. Experiment: Students drop a ball from different heights and record the falling time.

Select all the things that can changed in this experiment below. Remember to select ALL that apply.

Experiment: Students drop a ball from different heights and record the falling time.

Identify the independent variable in the experiment below. Experiment: Students drop a ball from different heights and record the falling time.

Identify the independent variable in the experiment below.

Experiment: Students drop a ball from different heights and record the falling time.

Identify the dependent variable in the experiment below. Experiment: Students drop a ball from different heights and record the falling time.

Identify the dependent variable in the experiment below.

Experiment: Students drop a ball from different heights and record the falling time.

Identify a control variable in the experiment below. Experiment: Students drop a ball from different heights and record the falling time.

Identify a control variable in the experiment below.

Experiment: Students drop a ball from different heights and record the falling time.

Select all the things that can be changed in this experiment below. Remember to select ALL that apply. Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Select all the things that can be changed in this experiment below. Remember to select ALL that apply.

Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify the independent variable in the experiment below. Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify the independent variable in the experiment below.

Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify the dependent variable in the experiment below. Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify the dependent variable in the experiment below.

Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify a control variable in the experiment below. Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify a control variable in the experiment below.

Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Select all the things that can changed in this experiment below. Remember to select ALL that apply. Experiment: A toy car is turned on travelling a distance and then turned off some time later.

Select all the things that can changed in this experiment below. Remember to select ALL that apply.

Select all the things that can changed in this experiment below. Remember to select ALL that apply.
Experiment: Students drop a ball from different heights and record the falling time.

Identify the independent variable in the experiment below.
Experiment: Students drop a ball from different heights and record the falling time.

Identify the dependent variable in the experiment below.
Experiment: Students drop a ball from different heights and record the falling time.

Identify a control variable in the experiment below.
Experiment: Students drop a ball from different heights and record the falling time.

Select all the things that can be changed in this experiment below. Remember to select ALL that apply.
Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify the independent variable in the experiment below.
Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify the dependent variable in the experiment below.
Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify a control variable in the experiment below.
Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Select all the things that can changed in this experiment below. Remember to select ALL that apply.
Experiment: A toy car is turned on travelling a distance and then turned off some time later.

Select all the things that can changed in this experiment below. Remember to select ALL that apply.
Experiment: Students drop a ball from different heights and record the falling time.

Identify the independent variable in the experiment below.
Experiment: Students drop a ball from different heights and record the falling time.

Identify the dependent variable in the experiment below.
Experiment: Students drop a ball from different heights and record the falling time.

Identify a control variable in the experiment below.
Experiment: Students drop a ball from different heights and record the falling time.

Select all the things that can be changed in this experiment below. Remember to select ALL that apply.
Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify the independent variable in the experiment below.
Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify the dependent variable in the experiment below.
Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Identify a control variable in the experiment below.
Experiment: A study was done to find if different tire treads affect the braking distance of a car.

Select all the things that can changed in this experiment below. Remember to select ALL that apply.
Experiment: A toy car is turned on travelling a distance and then turned off some time later.