Scientific Investigation Review

Front

What is an independent variable in an experiment?

Back

The independent variable is the one that is deliberately changed or manipulated by the scientist to observe its effect on the dependent variable.

Front

What is a dependent variable in an experiment?

Back

The dependent variable is the one that is measured or observed in an experiment, and it is affected by changes in the independent variable.

Front

What is a control group in an experiment?

Back

The control group is the part of the experiment that does not receive the treatment or independent variable, serving as a basis for comparison.

Front

What is the purpose of an experimental group?

Back

The experimental group is the part of the experiment that receives the treatment or independent variable, allowing scientists to observe the effects of the manipulation.

Front

In an experiment on plant growth, if different liquids are used, what is the independent variable?

Back

The independent variable is the type of liquid given to the plants.

Front

Why is it important to keep certain conditions constant in an experiment?

Back

Keeping conditions constant ensures that any changes in the dependent variable can be attributed to the independent variable, increasing the validity of the results.

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What is the role of data in scientific investigations?

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Data is the information collected during an experiment, which is used to analyze results and draw conclusions.

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How can a hypothesis be defined?

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A hypothesis is a testable prediction about the relationship between the independent and dependent variables in an experiment.

Front

What is the significance of replicating experiments?

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Replicating experiments helps to verify results and ensures that findings are reliable and not due to chance.

Front

What is a variable in the context of scientific experiments?

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A variable is any factor, trait, or condition that can exist in differing amounts or types and can affect the outcome of an experiment.