Scientific Method Review

Data that are qualitative are always-

• described in words
• represented in numbers
• repeated for verification
• the most accurate type of data

Data that are qualitative are always-

• described in words
• represented in numbers
• repeated for verification
• the most accurate type of data

"The insect in Container B has six appendages" is an example of what type of scientific observation?

• quanitative
• qualitative
• inference
• hypothesis

A hypothesis is-

• a possible explanation of an observation that can be tested
• a proven statement
• a conclusive statement
• a definite answer to a possible problem

You suggest that the absence of water could prevent the growth of bread mold. This is-

• a hypothesis
• a conclusion
• an experiment
• an analysis

The purpose of a controlled experiment is to allow a scientist to isolate and test-

• a single variable
• several variables
• many data
• a conclusion

How does the control group differ from an experimental group in a scientific experiment?

• the control group does not contain the experimental data, whereas the experimental group does
• the control group does not contain the experimental variable, whereas the experimental group does not
• the control group is not tested or measured
• the control group contains more than one experimental variable

The variable that is measured in the experiment is-

• the dependent variable
• the independent variable
• the control variable
• the hypothetical variable

Which of the following must be done for the results of an experiment to be considered valid?

• the experiment must be repeated numerous times and the same results are obtained
• the results must be published in a national journal
• the results must be shown in a graph
• the results must be only quantitative

Is the following question testable?

Does the amount of fertilizer affect how tall a flower grows?

• yes

• no