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Near Synonyms and Commonly Confused Words

Near Synonyms and Commonly Confused Words

Two very different problems get filed under the same heading. One is spelling-driven: accept and except sound almost identical, so people reach for the wrong one. The other has nothing to do with spelling: concise and cursory look nothing alike, but both mean short, and choosing between them requires knowing why the writing was short. […]

Prefixes That Show Direction, Negation, and Degree

Prefixes That Show Direction, Negation, and Degree

A prefix is the fastest clue in the language. Before you know anything else about a word, its first two or three letters may tell you that something is being denied, reversed, repeated, or overdone. The clue is real but partial, and treating it as a full definition is the single most common way people […]

Common Science Question Traps

Common Science Question Traps

Science Facts and Quick Review

Science Facts and Quick Review

How to Evaluate Experiments and Evidence

How to Evaluate Experiments and Evidence

Drawing Conclusions and Making Predictions

Drawing Conclusions and Making Predictions

How to Interpret Scientific Data

How to Interpret Scientific Data

Reliability, Validity, Accuracy, and Precision

Reliability, Validity, Accuracy, and Precision

Hypotheses, Theories, and Scientific Explanations

Hypotheses, Theories, and Scientific Explanations

Variables, Controls, and Experimental Design

Variables, Controls, and Experimental Design

Scientific Measurement and Lab Tools

Scientific Measurement and Lab Tools

Acids, Bases, and the pH Scale

Acids, Bases, and the pH Scale