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1.6: Observations and Experiments

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Vocabulary

control group

control group

Group in a scientific experiment in which the factor being tested, the independent variable, is not applied; used as a basis for comparison.
dependent variable

dependent variable

Variable in an experiment that is being measured as the independent variable is changed.
experiment

experiment

Trial made under controlled conditions to test the validity of a hypothesis.
experimental error

experimental error

Errors that are made due to problems with the experimenter.
independent variable

independent variable

Variable in an experiment that is controlled and changed by the researcher.

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Description

Difficulty Level:

Basic

Grades:

6 , 7

Date Created:

Jan 04, 2013

Last Modified:

Dec 15, 2014
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\n Front Matter\n

\n

\n Foreword\n

\n

\n Earth science is the study of planet Earth. The CK-12 Earth Science Concept Collection For Middle School presents Earth science as a set of 14 chapters, each centered around a general area of study, such as plate tectonics or atmospheric processes. Each chapter is broken down into concepts. Each concept is a mini-lesson that addresses one specific topic or key objective. The complete CK-12 Earth Science Concept Collection For Middle School is comprised of 308 concepts.\n

\n

\n Preface\n

\n

\n Dedication\n

\n

\n Chapters\n

\n
\n \n
\n

\n Back Matter\n

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Original text