Nature of Science Quiz

What is the primary purpose of conducting repeated trials in a scientific experiment?

• To make the experiment take longer

• To ensure results are reliable and consistent

• To use more materials

• To practice the experiment steps

In a controlled experiment, what is the variable that the scientist changes on purpose?

• The dependent variable

• The control group

• The independent variable

• The constant variable

Which statement is an example of a scientific fact?

• Blue is the prettiest color

• Water freezes at 0 degrees Celsius at sea level

• Dogs make better pets than cats

• Summer is the most fun season

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

• To make the experiment more complicated

• To provide entertainment

• To serve as a comparison for the experimental group

• To use extra materials

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Which of these is an opinion about the weather?

• The temperature today is 75°F

• It's raining outside

• This is perfect weather for a picnic

• The wind speed is 10 mph

What should a scientist do if their experimental results are different from what they expected?

• Change the results to match expectations

• Ignore the unexpected results

• Record the actual results accurately

• Stop the experiment immediately

Why do scientists share their experimental results with others?

• To become famous

• To allow others to verify their findings

• To confuse other scientists

• To keep their work secret

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What is a hypothesis?

• The final conclusion of an experiment

• A educated guess about what might happen

• The list of materials needed

• The experimental procedure

Which of these is NOT necessary for a controlled experiment?

• Variables that stay the same

• A hypothesis

• Expensive equipment

• Careful measurements

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What should you do if your first trial gives unexpected results?

• Repeat the experiment several more times

• Assume your hypothesis was wrong

• Give up on the experiment

• Change the results

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