Scientific Method and Variables

What is a hypothesis in a scientific experiment?

• A proposed explanation or prediction that can be tested through experimentation.

• A random guess with no basis

• A conclusion drawn from observation

• A fact that has been proven through experimentation

Tags

NGSS.MS-LS1-5

In an experiment, what is the dependent variable?

• The dependent variable is the variable that is being measured or tested in an experiment.

• The dependent variable is the variable that is not important in an experiment.

• The dependent variable is the variable that is manipulated by the researcher.

• The dependent variable is the variable that remains constant in an experiment.

Tags

NGSS.MS-PS1-2

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

• To confuse the results

• To make the experiment more complicated

• To provide a baseline for comparison

• To provide entertainment

Explain what is meant by experimental design in a scientific investigation.

• The plan or strategy for conducting an experiment to test a hypothesis or answer a research question.

• The analysis of results after an experiment

• The collection of data from an experiment

• The process of creating a new scientific theory

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-2

NGSS.MS-PS3-4

Why is data analysis an important step in the scientific method?

• To confuse the researchers

• To waste time and resources

• To make the results look more impressive

• To interpret the results and draw conclusions based on evidence.

Tags

NGSS.MS-LS2-4

NGSS.MS-PS1-2

What is the role of a hypothesis in the scientific method?

• It guides the research and experimentation process.

• It has no role in the scientific method

• It is used to prove a predetermined outcome

• It is only necessary in certain fields of science

How does the dependent variable differ from the independent variable in an experiment?

• The dependent variable is the one being measured or tested in the experiment.

• The dependent variable is the one that remains constant throughout the experiment.

• The independent variable is the one being measured or tested in the experiment.

• The independent variable is the result of the experiment.

Why is it important to have a control group in an experiment?

• To make the experiment more complicated

• To provide a baseline for comparison and ensure that any changes observed are due to the manipulated variable.

• To confuse the results

• To waste time and resources

Describe the steps involved in conducting a scientific experiment.

• Forming a hypothesis, making an observation, drawing a conclusion

• Asking a question, conducting an experiment, analyzing the data

• Making an observation, asking a question, forming a hypothesis, conducting an experiment, analyzing the data, and drawing a conclusion.

• Making an observation, forming a hypothesis, drawing a conclusion

What are the different types of variables that can be present in a scientific experiment?

• Test variable, trial variable, and error variable

• Red variable, blue variable, and green variable

• Main variable, secondary variable, and backup variable

• Independent variable, dependent variable, and controlled variables

Tags

NGSS.HS-PS1-3