NYS Lab Making Connections

Front

What is the independent variable in an experiment?

Back

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

Front

What is muscle fatigue and when does it occur?

Back

Muscle fatigue occurs when the waste products carbon dioxide and lactic acid aren't carried away from muscle cells fast enough by the blood.

Front

Why is a control group important in an experiment?

Back

A control group is important because it allows for a valid comparison to be made, helping to draw accurate conclusions.

Front

How can experimental results be made more valid?

Back

Increasing the number of participants can help make experimental results more valid by providing a larger data set.

Front

What does a pulse rate indicate?

Back

Pulse rate indicates the number of times the heart beats per minute, reflecting the body's activity level.

Front

What is the purpose of a hypothesis in an experiment?

Back

A hypothesis is a testable prediction about the relationship between variables in an experiment.

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 the independent variable.

Front

What is the significance of using safety precautions in experiments?

Back

Using safety precautions helps to prevent accidents and injuries during experiments, ensuring a safe working environment.

Front

What is the role of data collection in scientific investigations?

Back

Data collection is crucial for analyzing results, drawing conclusions, and validating or refuting hypotheses.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.