APES Double the Stuff?

Fill in the blank: The hypothesis in the experiment should be written as an ______ statement.

• A) If, then

• B) Because

• C) When, then

• D) Although

Answer explanation

The correct choice is A) If, then, as hypotheses are typically framed in this conditional format, indicating a cause-and-effect relationship that can be tested in an experiment.

Which of the following is NOT a section in the experiment design?

• Materials

• Hypothesis

• Conclusion

• Procedure

Answer explanation

The correct answer is 'Conclusion' because it is not a standard section in experimental design. The typical sections include Materials, Hypothesis, and Procedure, which outline the experiment's setup and execution.

What is the purpose of the control in an experiment?

• To change the outcome

• To provide a standard for comparison

• To increase the sample size

• To eliminate variables

Answer explanation

The purpose of the control in an experiment is to provide a standard for comparison. It allows researchers to determine the effect of the independent variable by comparing results against the control group.

What should be included in the procedure section of an experiment?

• A list of materials

• A detailed step-by-step description

• A summary of results

• A hypothesis

Answer explanation

The procedure section should include a detailed step-by-step description of the experiment, outlining how to conduct it. This ensures reproducibility and clarity, making it the correct choice over materials, results, or hypothesis.

Tags

NGSS.MS-LS1-1

Which of the following is a constant in an experiment?

• The variable being tested

• The control group

• The conditions that do not change

• The hypothesis

Answer explanation

In an experiment, constants are the conditions that do not change, ensuring that the results are due to the variable being tested. Therefore, the correct answer is 'The conditions that do not change'.

The conclusion of an experiment should be based on:

• Personal opinion

• Data collected

• The weather

• The time of day

Answer explanation

The conclusion of an experiment should be based on the data collected, as it provides objective evidence to support findings. Personal opinions, weather, and time of day are not reliable bases for scientific conclusions.

Tags

NGSS.MS-LS2-4

NGSS.MS-PS1-2

Identify the independent variable in this experiment.

Answer explanation

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

Identify the dependent variable in this experiment.

Answer explanation

The dependent variable is the outcome that is measured in the experiment. It changes in response to the independent variable, allowing researchers to assess the effect of their manipulations.

Tags

NGSS.MS-PS1-2

Identify the control in this experiment.

Answer explanation

The control in this experiment is the group or condition that does not receive the experimental treatment. It serves as a baseline to compare the effects of the treatment, helping to isolate the variable being tested.

Identify four (4) constant in this experiment.

Answer explanation

In this experiment, constants may include temperature, pressure, volume of the solution, and concentration of reactants. These factors remain unchanged to ensure valid results and accurate comparisons.

Tags

NGSS.MS-PS2-2