Front

What are direct observations and measurements made during an experiment called?

Back

Data

Front

What is the summary at the end of an experiment that explains the results?

Back

Conclusion

Front

What is a relevant, important, specific, and testable question to investigate regarding the impact of salt levels on the environment?

Back

How does the concentrations of road salt runoff in the Tookany/Tacony-Frankford Watershed affect the growth rate of native tree species within the watershed over a 3-month period?

Front

In an experiment testing the effects of type of exercise on heart rate, what is the dependent variable?

Back

Heart rate

Front

In an experiment to determine which cleaning agent does the best job cleaning oil off feathers, what is the dependent variable?

Back

The amount of oil removed.

Front

What is the definition of a hypothesis in scientific research?

Back

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

Front

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

Back

The control group serves as a baseline to compare the effects of the independent variable.

Front

What is an independent variable in an experiment?

Back

The independent variable is the factor that is changed or manipulated by the researcher.

Front

What is a dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in response to changes in the independent variable.

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.