Basic Concepts of Experiments

What is a hypothesis in an experiment?

• A list of materials needed

• An educated guess or prediction

• A table of data

• A conclusion of the experiment

Tags

NGSS.HS-PS1-2

Which type of variable is intentionally changed in an experiment?

• Control variable

• Dependent variable

• Independent variable

• Qualitative variable

What is the purpose of a control variable in an experiment?

• To change the outcome

• To remain the same for fairness

• To measure the effect

• To record data

Tags

NGSS.MS-PS2-2

What type of data is described as being recorded with numbers and measured?

• Qualitative data

• Quantitative data

• Descriptive data

• Hypothetical data

Tags

NGSS.MS-PS3-1

What should you do during the "Observe and Record" step of an experiment?

• Make a hypothesis

• List materials

• Watch what happens and take notes

• Write a conclusion

What is the role of the dependent variable in an experiment?

• It remains unchanged

• It is the cause of the experiment

• It changes because of the independent variable

• It is used to make predictions

Tags

NGSS.MS-PS3-1

How should you organize your data after an experiment?

• By making a hypothesis

• By listing materials

• By making a table or graph

• By writing a conclusion

Tags

NGSS.MS-PS1-2

What is the final step in an experiment where you explain what happened?

• Hypothesis

• Conclusion

• Observation

• Experimentation

What is a hypothesis?

• an educated guess stating what you believe will be the result of your experiement

• a random guess

• a statement of the outcome of your experiment

• step by step directions for your experiment

Tags

NGSS.HS-PS1-2

According to the diagram, which question is being tested?

• Do plants grow taller when watered with salt water?
• How much fertilizer do plants need?
• Does fertilizer make plants grow taller?
• What is the best fertilizer to use?

Tags

NGSS.MS-LS1-5