Unit 1: Scientific Method Quiz

What variable is changed by the experimenter to test the hypothesis?

• Dependent variable
• Independent variable
• Control variable
• Experimental variable

Tags

NGSS.MS-PS2-2

Which variable is measured to see how it is affected by changes in the independent variable?

• Dependent variable
• Independent variable
• Control variable
• Experimental variable

What is the first step in the scientific method that involves observing and describing phenomena?

• Hypothesis
• Observation
• Conclusion
• Experiment

Which step in the scientific method involves making a prediction or explanation that can be tested?

• Conclusion
• Hypothesis
• Observation
• Analysis

What type of graph would be best to show the relationship between two quantitative (numerical) variables?

• Line graph
• Bar chart
• Pie chart
• Histogram

Tags

NGSS.MS-PS3-1

What is the role of a control group in an experiment?

• To test the hypothesis under normal conditions
• To provide a standard for comparison
• To measure all dependent variables
• To act as a backup for the experimental data

What is the best approach to ensure accuracy in experimental data recording and analysis?

• By guessing and and avoiding statistical tools

• By following a structured method and applying statistical analysis

• By recording data inconsistently and without a clear method

• By relying on intuition and ignoring systematic procedures

What term describes a factor in an experiment that is kept the same across all trials?

• Independent variable
• Control variable
• Dependent variable
• Experimental variable

Tags

NGSS.MS-PS2-2

What conclusion can be drawn if experimental data supports a hypothesis?

• The hypothesis is rewritten

• The hypothesis is elevated to a theory

• The hypothesis is validated

• The hypothesis is never tested again

Tags

NGSS.HS-LS4-4

What should be done if experimental results do not support the initial hypothesis?

• Discard the entire study
• Revise the hypothesis and retest
• Publish the results as is
• Ignore the results

Tags

NGSS.HS-PS1-2