NAS2 Challenge Exam Questions and answers. 100?curate 12 pages

EXAMS AND CERTIFICATIONS

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Purpose of Scientific Method - Ã¢Å“â€Ã¢Å“â€-solve a problem or answer a question

Question, Hypothesis, Experiment, Observe & Record, Analyze, Conclude - Ã¢Å“â€Ã¢Å“â€-steps of scientific

method

Independent variable - Ã¢Å“â€Ã¢Å“â€-a variable that stands alone and isn't changed by the other variables you are

trying to measure, change or controlled

example: age

dependent variable - Ã¢Å“â€Ã¢Å“â€-a variable dependent on other factors, tested or measured

example: test score - factors that go into a score you receive on a test

control group - Ã¢Å“â€Ã¢Å“â€-does not receive treatment and used to compare or measure the other subjects

experimental group - Ã¢Å“â€Ã¢Å“â€-exposed to changes in independent variable

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