Identifying Variables

Front

What is an independent variable?

Back

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

Front

What is a dependent variable?

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

In the experiment 'Which type of medium (soil or sand) is best for plant growth?', what is the independent variable?

Back

Type of medium (soil or sand).

Front

In an experiment, what do we call the variables that are kept constant?

Back

Constants are the variables that are kept the same throughout the experiment to ensure a fair test.

Front

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

Back

A control group is used as a standard for comparison to see how the independent variable affects the dependent variable.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities (e.g., color, texture), while quantitative data involves numbers and measurements (e.g., height, weight).

Front

What is a hypothesis?

Back

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

Front

In the experiment 'Matias wanted to see if his dog would lose weight if he took the dog for a walk twice a day instead of just once a day', what is the dependent variable?

Back

The dog's weight.

Front

What is the role of repeated trials in an experiment?

Back

Repeated trials help to ensure the reliability and accuracy of the results by minimizing the effects of random errors.

Front

What is an example of a controlled variable in an experiment testing plant growth?

Back

The amount of water given to each plant.