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OCHS Bio - Unit 1

Unit 1 - Nature of Science

Vocab WordAnswer (from textbook)Anchor/Helper Phrase
inference a logical interpretation based on prior knowledge and experience an "educated guess"
data evidence; information gathered from observations the results of an experiment (either numbers or descriptions)
hypothesis possible explanation for a set of observations or possible answer to a scientific question a testable answer to a question
spontaneous generation the idea that living organisms can be generated from non-living tissue Redi's experiment (with meat and flies) and Pasteur's experiment (with bacteria and flasks) disproved this theory
controlled experiment experiment in which only one variable is changed everything is constant except one variable (independent)
independent variable factor in a controlled experiment that is deliberately changed; also called manipulated variable the thing "I" (or the scientist) is changing in an experiment
dependent variable variable that is observed and that changes in response to the independent variable; also called the responding variable the data; the thing in an experiment that is measured
constants part of an experiment that is kept the same in order to provide comparison between the control and experimental groups constant = stays the same
control group group in an experiment that is exposed to the same conditions as the experimental group except for one independent variable the group that is left alone ("normal")
experimental group group in an experiment that is exposed to the independent variable the group you are changing something in
conclusion the statements made about the findings of a controlled experiment that help explain the results what you found out from an experiment
scientific journal a collection of articles that outline the results of experiments and must be peer-reviewed before they are published the best source of scientific info (peer-reviewed)
theory well-tested explanation that unifies a broad range of observations and hypotheses, and enables scientists to make accurate predictions about new situations a VERY highly accepted scientific idea (NOT an educated guess)
observation process of noticing and describing events or processes in a careful, orderly way using your senses to take in information from your surroundings
Created by: nickbudz