What is a controlled experiment?

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The Scientific Method

They don't know what to expect

To objectively reach a conclusion.

To support their hypothesis based on the data collected

To refute their hypothesis based on the data collected

The responding variable

The manipulated variable

The responding variable

The manipulated variable

Will my dog like steak or chicken?

Does Tylenol or Aspirin have a better taste?

Can the sun rise on the West coast?

The plant that has sugars

The plant with fertilizer

The plant in the light

The plant in the dark

the dependent variable

the manipulated variable

the independent variable

the responding variable

The increase on the weight on the string will increase the pitch of the sound

The sound will change when I change the weight

A decrease in the weight on the string will decrease the pitch of the sound.

I will change the weight on the bucket and then I will see the string moving.

True

False

Because it is organized better

To test one variable at a time

Because scientists like to control the results of the experiments.

The empty basket is the experimental variable.

The empty basket is the control variable.

The empty basket is a mistake in the experiment

The experiment's results are objective

To avoid sources of error

To double the results

To use as many materials and chemicals available.