1 Intro & Measurement | Adventures in Science with Mr. Barber

Unit 1 : Introduction & Measurement

CONCEPTS
  • Science & Observation
  • Physical v Chemical Changes
  • Accuracy v Precision
  • Significant Digits & Calculations
  • Metrics
  • Scientific Notation
  • States of Matter
  • Dimensional Analysis
  • Unit Conversion
OVERVIEW
Chemistry is the study of the composition of substances and the changes that substances undergo. Our world is complex. Chemistry reflects this complexity in the broad areas of interest that it covers. It contributes to other natural sciences including biology, geology, and phys- ics. Chemistry overlaps with agriculture, medicine, and many manufacturing industries as well.

Fundamental Science
Scientists make observations when they note and record facts about natural phe- nomena. They try to explain their observations by devising hypotheses. Hypotheses are descriptive models for observations. A hypothesis is useful if it accounts for what scientists observe in many situations.

In order to learn more, scientists often perform experiments in which one or more of the conditions are controlled. An important principle of an experiment is that it can be repeated numerous times. The observations, which are recorded from an experiment, constitute data. Analysis of the data allows scientists to formulate a conclusion…that is, each claim is always supported by some piece of evidence (data) collected during an investigation (experiment).

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SCREENCASTS
Intro & Balancing
Decomposition Reactions
Double Replacement Reactions
Oxidation Number Rules
Combination Reactions
Single Replacement Reactions
Descriptors in Reactions
RESOURCES
UNIT REVIEW
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