Exploring the Scientific Method and Mastery of Graphs

What is the first step in the scientific method?

• Formulating a hypothesis

• Conducting an experiment

• Making an observation

• Analyzing the data

Which variable is manipulated or changed by the researcher in an experiment?

• Dependent variable

• Independent variable

• Control variable

• Extraneous variable

When looking at a graph, what does the slope of the line typically represent?

• The time frame of the experiment

• The precision of the data

• The relationship between the variables

• The units of measurement

Tags

NGSS.MS-PS3-1

What is a hypothesis?

• A summary of the data collected in an experiment

• An educated guess or prediction that can be tested

• The outcome of an experiment

• A statement of fact

Tags

NGSS.HS-PS1-2

Which of the following is NOT a characteristic of a well-designed experiment?

• It can be replicated by others

• It has a large sample size

• It includes only one independent variable

• It proves the hypothesis to be true

Tags

NGSS.MS-LS2-4

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

• To prove the hypothesis

• To measure the effect of the independent variable

• To serve as a standard for comparison

• To manipulate the dependent variable

Tags

NGSS.MS-PS2-2

In an experiment, the dependent variable is the one that is:

• Kept constant throughout the experiment

• Changed by the researcher to test its effects

• Measured to see how it is affected by the independent variable

• Used to determine the sample size

Tags

NGSS.MS-PS2-2

What does a bar graph best represent?

• Changes over time

• Parts of a whole

• Comparisons between different groups

• Relationships between two variables

Tags

NGSS.MS-PS3-1

Which of the following is an essential component of the scientific method that helps to ensure the reliability of the results?

• A large sample size

• A complex hypothesis

• Repeated trials

• A single hypothesis

Tags

NGSS.MS-LS1-5

When graphing data, the independent variable is typically placed on which axis?

• The horizontal (x-axis)

• The vertical (y-axis)

• Either axis, as it does not matter

• The axis with the larger scale

Tags

NGSS.MS-PS3-1