Testable Investigations

BooBoo believes that his plants grow so well because he is always playing music in his room. What is a question he might ask to test this?

• Does music have an affect on plant growth?
• Which music groups like plants?
• Does plant growth make music sound better?
• Why do dying plants hate music?

Which variable values should you know before you start an experiment?

• Dependent Variable
• Independent Variable

Which variable values should be the same for all groups in the experiment?

• Controlled Variable
• Dependent Variable
• Independent Variable

Which variable values should be chosen at the beginning of the experiment and be different for every group?

• Controlled Variable
• Dependent Variable
• Independent Variable

Which variable values are unknown until after the experiment?

• Controlled Variable
• Dependent Variable
• Independent Variable

Which variable values do you have control over in an experiment, meaning you can decide what they are ahead of time?

• Dependent Variable
• Independent Variable

Which variable do you test (the effects of) in a scientific investigation? Hint: This is the same variable that you will change for every group.

• Controlled Variable
• Dependent Variable
• Independent Variable

In a cause-effect experiment, which variable is considered to be the "cause?"

• Controlled Variable
• Dependent Variable
• Independent Variable

In a cause-effect experiment, which variable is considered to be the "effect?"

• Controlled Variable
• Dependent Variable
• Independent Variable

In an experiment, which variable should affect all groups the same way?

• Controlled Variable
• Dependent Variable
• Independent Variable