Scientific Method

What is an observation?

• Something you measure or detect with your senses.

• The way you feel about something

• An educated guess

• A theory that has been disproved

Which of the following is NOT a testable question?

• How do rockets work?

• Does fertilizer help plants grow bigger?

• Does heart rate increase with exercise?

• Does the freezing point of water change at different elevations?

What is a hypothesis?

• An educated prediction or answer to a testable question

• A random guess

• An observation based on feelings or emotions

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An observation that is measurable and made with tools (such as a ruler or scale) is what type

• quantitative

• qualitative

• koalatative

After the data is analyzed the hypothesis is stated as correct or incorrect in the __________

• conclusion

• experiment

• hypothesis

• table of contents

Which best describes the act of using senses or tools to gather information?

• creating a hypothesis

• making an observation

• summarizing the results

• recording the measurements

Which best describes the purpose of a control sample?

• to compare its results to those of a well-known scientist

• to have more qualitative data to analyze at the end of the experiment

• to compare its results to those with the experimental sample

When we test our hypothesis, there are two types of variables. What are they?

• Independent and controlled variable

• dependent and controlled variable

• independent and dependent variable

• none of the above

Constants are factors in an experiment that stay the same. True or False?

• True

• False

What should an experimenter do after analyzing data?

• carry out the experiment

• draw conclusions

• observe and infer

• identify the problem