Scientific Method Review

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

The main reason that diagrams, tables and graphs of data are used by scientists is to-

• organize data
• verify the conclusion
• test a hypothesis
• create an experiment

Suppose your friends went to the beach at noon on a warm day. They saw some black and white birds. As you are talking to you friend you think "This happen during summertime". Is this an observation or an inference?

• observation

• inference

Suppose your friends went to the beach at noon on a warm day. They saw some black and white birds. As you are talking to you friend you think "It was during the day". Is this an observation or an inference?

• observation

• inference