Independent and Dependent Variables

What is the relationship between independent and dependent variables?

• The independent variable affects the dependent variable; changes in the independent variable lead to changes in the dependent variable.

• The dependent variable affects the independent variable; changes in the dependent variable lead to changes in the independent variable.

• Independent variables are always constant, while dependent variables vary.

• Independent and dependent variables are unrelated and do not influence each other.

What is an example of a dependent variable in a study measuring the effect of temperature on ice melting?

• The temperature of the ice

• The amount of ice melted

• The type of container used

• The duration of the experiment

In a line graph, which variable is represented on the x-axis?

• The dependent variable

• The independent variable

• The control variable

• The constant variable

What are constants in an experiment?

• Factors that are kept the same throughout an experiment to ensure that the results are valid.

• Variables that change during the experiment to test the hypothesis.

• The final results obtained from the experiment after analysis.

• The initial conditions set before starting the experiment.

What is the role of data analysis in experiments?

• Data analysis is used to collect samples for experiments.

• Data analysis helps to interpret the results of an experiment and determine if the hypothesis is supported or refuted.

• Data analysis is only necessary for large-scale experiments.

• Data analysis is used to design the experiment before it starts.

How do you identify the independent variable in a study?

• The independent variable is what the researcher changes or manipulates in the experiment.

• The independent variable is the outcome that is measured in the study.

• The independent variable is the group that does not receive the treatment.

• The independent variable is the variable that remains constant throughout the study.

What is a dependent variable?

• A variable that is manipulated in an experiment.

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

• A constant that remains unchanged throughout the experiment.

• A variable that does not affect the outcome of the experiment.

What is an independent variable?

• A variable that is measured in an experiment.

• A variable that is kept constant throughout the experiment.

• A factor that is changed or controlled in an experiment to test its effects on the dependent variable.

• A variable that does not affect the outcome of the experiment.

In an experiment comparing plant growth with different sunlight exposure, what is the independent variable?

• The type of soil used for planting.

• The amount of water given to the plants.

• The amount of sunlight each plant receives.

• The size of the pots used for the plants.

What is a hypothesis in the context of an experiment?

• A hypothesis is a testable prediction about the relationship between the independent and dependent variables.

• A hypothesis is a definitive conclusion drawn from experimental data.

• A hypothesis is an untestable statement about the outcome of an experiment.

• A hypothesis is a random guess made before conducting an experiment.