Lab 1: Scientific Method

The 5 steps of the scientific method are:

• Observation, Question, Hypothesis, Experiment, Conclusion

• Observation, Question, Experiment, Hypothesis, Conclusion

• Observation, Hypothesis, Experiment, Data Collection, Conclusion

• Question, Observation, Hypothesis, Experiment, Conclusion

Hypothesis is defined as a tentative explanation or proposition that can be tested through experiments or observations.

• A statement that is proven.

• A tentative explanation that can be tested.

• A random guess.

• An untestable guess.

A good hypothesis is testable and falsifiable.

• It is testable and falsifiable.

• It is based solely on opinions.

• It is vague and ambiguous.

• It is not open to testing.

Can you prove a hypothesis?

A rejected hypothesis does not indicate a failed experiment because it shows only that the hypothesis was incorrect. Select the correct explanation.

• A rejected hypothesis indicates a failed experiment because the results are invalid.

• A rejected hypothesis does not indicate a failed experiment because it only shows the hypothesis was incorrect.

• A rejected hypothesis indicates that the experiment was improperly designed.

• A rejected hypothesis suggests that all experimental outcomes are erroneous.

Experiments need to be repeated to verify results.

• To verify results

• To increase error margins

• To satisfy scientific procedures

• They don't need to be repeated

What is a variable?

• A variable is any factor that can change in an experiment.

• A variable is a factor that remains constant throughout an experiment.

• A variable is an instrument used to measure changes in an experiment.

• A variable is a constant value used only for mathematical calculations.

Define independent, dependent, and control variables: The independent variable is manipulated, the dependent variable is measured, and the control variable is kept constant.

• Independent variable is manipulated; dependent variable is measured; control variable is kept constant.

• Independent variable is measured; dependent variable is manipulated; control variable is kept constant.

• Independent variable remains constant; dependent variable is measured; control variable is manipulated.

• All variables are kept constant.

Which of the following is an example of a dependent variable? Independent Variable Example: The amount of sunlight given to a plant. Dependent Variable Example: The height or growth of the plant. Control Variables Example: Soil type, water amount, temperature.

• The amount of sunlight given to a plant

• The height or growth of the plant

• Soil type, water amount, temperature

• None of the above

Know how to draw a bar graph and the essential components of a bar graph. Which of the following is NOT an essential component in a bar graph: Title, X-Axis, Y-Axis, Labels & Units, and Bars?

• Title

• X-Axis

• Y-Axis

• Pie Chart