Scientific Method

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• True
• How fast you get to school
• Riding a bike or walking
• False

Dependent variable means

• the scientist controls what to test
• educated guess
• ask a question
• what is being measured

What is a factor that the experimenter has full control over and changes to see what happens?

• Dependent Variable
• Independent Variable
• Control group 
• Hypothesis

A SUMMARY OF YOUR RESULTS

• CONCLUSION

• HYPOTHESIS

• QUESTION

• DATA

After you make an observation you state the ____________?

• Problem/Question

• Hypothesis

• Conclusion

• Research

Your hypothesis MUST be _________________________.

• silly

• testable

• a variable

• educational

A possible explanation for a problem that has not yet been tested is known as a ___________.

• data

• theory

• hypothesis

• fact

Should experiments be repeated over and over to see if the results are the same each time?

• yes
• no

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball
• Force acting on the ball
• Height that the ball bounces
• Height from which the ball is dropped