Middle School Comprehensive Science III

Pre-Requisites: MS Comprehensive Science II
Credits: 1.0
Estimated Completion Time: 28-32 weeks


Prepare for high school science courses with this introduction of new topics and review of science basics. You will learn more about the nature of science, Earth and space science, properties of matter, changes in matter, matter and energy, and energy flow.

Major Topics and Concepts


Module 01—Matter

  • Examples and Nonexamples of science
  • Pseudoscientific Ideas
  • Steps of the Scientific Method
  • Units of Measurements
  • Weight Versus Mass
  • Volume and Density
  • Physical Properties of Matter

Module 02—Changes in Matter

  • States of Matter
  • Physical and Chemical Changes
  • Conservation of Mass
  • Thermal Energy and Chemical Change
  • Scientific Models

Module 03—Elements and Compounds

  • Atomic Theory
  • The Periodic Table
  • Valence Electrons
  • Compounds
  • Acids, Bases, and Salts
  • Mixtures and Pure Substances
  • Advanced Predicting Severe Weather


Module 04—Cycles and Conservation

  • Science and Society
  • Photosynthesis
  • Cellular Respiration
  • The Carbon Cycle
  • Scientific Modeling

Module 05—The Universe

  • Space and the Universe
  • Galaxies
  • Stars
  • Solar Properties
  • Electromagnetic Spectrum
  • Space Weather
  • Space Technology

Module 06—Our Solar System

  • Gravity
  • Our Solar System
  • Properties of Planets
  • Seasons
  • Tides
  • Eclipses
  • Moon Phases

Grading Policy

Students complete either an auto-graded or teacher-graded assessment for each lesson. There are also pretests and module exams for each module and segment level exams. Advanced students should complete only the advanced level module and segment exams.

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