Testable Questions and Variables

How do plants grow? 

• Testable
• Nontestable

How does the surface on which a car moves affect how fast it goes? 

• testable
• nontestable

What do birds eat? 

• testable
• nontestable

How does changing the shape of a kite affect it's ability to fly? 

• testable
• nontestable

Why is eating junk food bad for your health? 

• testable
• nontestable

Are cats better than dogs? 

• testable 
• nontestable

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 of the following is considered a good, testable question?

• Why do some basketballs bounce higher than others?
• What is the coating on a basketball made of?
• Is basketball a more challenging sport than soccer?
• What is the effect of air pressure on a basketball's bounce height?

Which of the following is a good, testable question?

• What is the effect of the amount of fertilizer on the mass of a pumpkin?
• Does the type of pumpkin affect where it grows?
• They type of pumpkin affects the mass of the pumpkin?
• how does mass affect fertilizer?

Which of the following is a good, testable question?

• Why do some kites fly for a longer amount of time?
• If the tail is changes, will a kite have more air time?
• What is the effect of air time on the number of tails?
• How does the number of tails on a kite affect the air time?