Unit 1 Test Review S138

Front

What is a testable hypothesis?

Back

A testable hypothesis is a statement that can be tested through experimentation or observation, often formulated as an 'if-then' statement.

Front

What is the independent variable in an experiment?

Back

The independent variable is the factor that is manipulated or changed in an experiment to observe its effect on the dependent variable.

Front

What is a control group in an experiment?

Back

A control group is a group in an experiment that does not receive the treatment or intervention, used as a benchmark to measure how the other tested subjects do.

Front

How many independent variables should be tested in a controlled experiment?

Back

In a controlled experiment, only one independent variable should be tested at a time to ensure that the results are due to that variable alone.

Front

What is the dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

What is the purpose of a hypothesis in scientific research?

Back

The purpose of a hypothesis is to provide a tentative explanation or prediction that can be tested through experimentation.

Front

What is the significance of replication in experiments?

Back

Replication is important in experiments to ensure that results are consistent and reliable, reducing the likelihood that findings are due to chance.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data is descriptive and involves characteristics that can be observed but not measured, while quantitative data involves numerical measurements and can be counted or measured.

Front

What is the role of variables in scientific experiments?

Back

Variables are factors that can change in an experiment; they are essential for testing hypotheses and determining relationships between different factors.

Front

What is the scientific method?

Back

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge, typically involving observation, hypothesis formulation, experimentation, and conclusion.