24-25 1st Semester Exam-8th

Front

What is an independent variable?

Back

An independent variable is the factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

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

Front

What should you do if you do not understand a lab procedure?

Back

You should ask the instructor before proceeding.

Front

What is the first action to take if a laboratory fire erupts?

Back

Notify your instructor immediately.

Front

What is the purpose of using a higher factor sunscreen?

Back

A higher factor sunscreen is designed to provide greater protection against sunburn.

Front

In an experiment, what is the role of a control group?

Back

The control group is used as a standard for comparison and does not receive the experimental treatment.

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.

Front

Why is it important to repeat experiments?

Back

Repeating experiments helps to verify results and ensure reliability and accuracy.

Front

What is a hypothesis?

Back

A hypothesis is a testable prediction about the relationship between two or more variables.

Front

What is the significance of using a large sample size in experiments?

Back

A large sample size increases the reliability of the results and reduces the impact of outliers.