Scientific Method and Variables Review

What is the importance of repeating experiments?

• To verify results and ensure that findings are consistent and reliable.

• To make the experiments more complicated and difficult.

• To reduce the time taken for the experiments.

• To increase the number of variables in the experiments.

What is the significance of data analysis in the scientific method?

• Data analysis is used to collect data before an experiment.

• Data analysis helps to interpret the results of an experiment and determine if the hypothesis is supported.

• Data analysis is only necessary for large-scale experiments.

• Data analysis is irrelevant to the scientific method.

Tags

NGSS.MS-LS2-1

NGSS.MS-PS1-2

What is a dependent variable?

• The variable that is measured in an experiment; it responds to changes in the independent variable.

• The variable that is manipulated by the researcher in an experiment.

• A variable that remains constant throughout the experiment.

• The outcome that is predicted based on the independent variable.

What are constants in an experiment?

• Factors that remain the same throughout an experiment to ensure that the test results are valid.

• Variables that change during the experiment to test the hypothesis.

• Conditions that are altered to observe their effects on the outcome.

• Measurements taken at the end of the experiment to analyze results.

What is the purpose of a control in an experiment?

• To provide a baseline to compare the results of the experimental group.

• To ensure that the experiment is conducted in a controlled environment.

• To manipulate the variables in the experiment.

• To increase the sample size of the experimental group.

Tags

NGSS.MS-PS1-2

What is qualitative data?

• Data that can be measured numerically, such as height or weight.

• Data that describes characteristics or qualities that cannot be measured numerically, such as color or texture.

• Data that is collected through surveys and questionnaires.

• Data that is represented in graphs and charts.

What is a control group?

• A group in an experiment that receives the experimental treatment.

• A group in an experiment that does not receive the experimental treatment and is used for comparison.

• A group that is used to manipulate variables in an experiment.

• A group that is randomly selected from the population for the experiment.

What is peer review?

• A method of evaluating scientific work by the public

• The process by which scientific work is evaluated by others in the same field before publication.

• A system for publishing scientific work without evaluation

• A technique for gathering data from multiple sources

What is an experiment?

• A method to gather data without any manipulation of variables.

• A procedure carried out to test a hypothesis and observe the effects of changing variables.

• A way to analyze past events without conducting any tests.

• A technique used to predict future outcomes based on historical data.

Tags

NGSS.MS-PS1-2

What is quantitative data?

• Data that can be measured and expressed numerically, such as height, weight, or temperature.

• Data that describes qualities or characteristics.

• Data that is collected through surveys and interviews.

• Data that is only available in textual format.

Tags

NGSS.MS-PS3-1