NATURE of SCIENCE REVIEW

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What is a variable in an experiment?

Back

A variable is a factor or condition that can change in an experiment. In a simple experiment, only one variable should be changed at a time to ensure accurate results.

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What is the first step in conducting a scientific investigation?

Back

The first step is to develop a question that you want to investigate.

Front

What is a control group in an experiment?

Back

A control group is a group that does not receive the experimental treatment and is used for comparison against the experimental group.

Front

How can you test if two objects fall at the same speed?

Back

You can drop both objects from a high place and compare how fast they fall.

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What should you do if your hypothesis is not supported by your results?

Back

You should repeat your investigation to see if your results are the same, which helps validate your conclusion.

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What is a hypothesis?

Back

A hypothesis is a testable prediction about the relationship between two or more variables.

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Why is it important to conduct background research before an experiment?

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Background research helps you understand what is already known about the topic and can guide your investigation.

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What is the purpose of recording observations in an experiment?

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Recording observations helps you collect data that can be analyzed to draw conclusions about your hypothesis.

Front

What does it mean to conduct an experiment?

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Conducting an experiment means to carry out a test or investigation to explore a scientific question.

Front

What is the difference between an independent variable and a dependent variable?

Back

The independent variable is the one that is changed or controlled in an experiment, while the dependent variable is the one that is measured or observed.