Scientific Method Quiz

1. What do we call a prediction made at the beginning of a science investigation? This is what we are going to test.

• Observation
• Hypothesis
• Variable
• Conclusion

2. What is a change in an experiment called?

• Observation
• Hypothesis
• Variable
• Conclusion

3. Which variable happens because of a choice we make? This variable comes first in an experiment.

• Dependent Variable
• Independent Variable

4. Which variable happens as a result? This variable comes second in an experiment.

• Dependent Variable
• Independent Variable

5. How many changes are WE allowed to make in an experiment for the results to be considered reliable?

• 1
• 2
• As many as we want

6. The SAMPLE SIZE was very small in this experiment. We had 1 flower with no sugar added (the control group) and 1 flower with sugar added (the experimental group). Why would having larger sample sizes be better?

• Smaller sample sizes provide more reliable data since there is less data to analyze.
• Larger sample sizes provide more reliable data since there is more data to analyze.

7. Why would scientists want to repeat the same experiment several times and not just one time when they use the scientific method?

• Because they want to change different variables
• Because they keep coming up with new questions
• Because they want to verify the results are true
• Because they don't mind making messes in the lab

8. What type of data describes qualities or characteristics?

• Qualitative
• Quantitative

9. What type of data describes number values?

• Qualitative
• Quantitative

10. A CONTROL VARIABLE stays the same in an experiment. What is an example of a control variable in our flower growth experiment?

• Adding sugar or not adding sugar
• The number of flower petals
• Where the flower pot is placed
• Option 4