Understanding Variables in Science Experiments

What is the primary role of variables in science experiments?

• To add complexity to the experiment

• To ensure the experiment is entertaining

• To confuse the experimenter

• To identify factors to consider before conducting experiments

In the classroom model, what does the teacher represent?

• The dependent variable

• The constant variable

• The independent variable

• The controlled variable

Which variable is represented by the teacher's boots in the classroom model?

• Dependent variable

• Independent variable

• Extraneous variable

• Controlled variable

What do the students represent in the classroom model?

• Independent variable

• Extraneous variable

• Controlled variable

• Dependent variable

Which of the following is a characteristic of controlled variables?

• They are ignored during the experiment

• They are kept the same throughout the experiment

• They are measured during the experiment

• They are changed during the experiment