Testable or not?

Testable or not?: How do plants grow?

• Testable

• Non-testable

Testable or not?: How does the surface on which a car moves affect how fast it goes?

• testable

• non-testable

Testable or not?: What do birds eat?

• testable

• non-testable

Testable or not?: How does changing the shape of a kite affect it's ability to fly?

• testable

• non-testable

Testable or not?: Why is eating junk food bad for your health?

• testable

• non-testable

Testable or not?: Are cats better than dogs?

• testable

• non-testable

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?

A testable question is, "How does the amount of exercise affect heart rate and breathing rate?" Which is the controlled variable?

• amount of exercise
• breathing rate
• heart rate
• temperature of the room