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Succeed in Understanding Physical Science

Physical Science consists of the studies of Astronomy, Chemistry, Physics and Earth Science (coming soon). It is concerned with physical properties of objects, as opposed to the study of the characteristics of living things, as done in the Life Sciences.

I'm Ron Kurtus, and I've always been interested in the Physical Sciences, including teaching the subject at the college level and working in the field in industry. I believe that knowledge of Physical Science is important for the development of the products we use.

It is also an interesting and exciting subject of value in many walks of life. There is a great need for people who understand scientific principles and know how to think logically. Your knowledge and skills in these areas can help you excel in school, advance your career or improve your business.

The purpose of these free online lessons is to give you a start at improving your scientific knowledge to help you become a champion in the field. If you have any questions, send me an email.

Physical Science Contents

Note: We now have many lessons in audio, so you can read along the spoken word.

Basics of Physical Science

Physical Science Overview

Using Mathematics in Physical Science

Fundamental Units of Measurement

Jobs Using Physical Science

Become a Champion in Physical Science

Three Levels of a Champion in Science

Using a Scientific Calculator


Main Astronomy page

Astronomy Basics

Solar System



Main Chemistry page

Chemistry Basics

Ingredients of Chemistry

Chemistry Recipes

Mixing things together in Chemistry

Chemistry Cooking

Digestion analogy in Chemistry

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Main Physics page

Basics of Physics



Friction Force

Gravity and Gravitation

Work and Energy


Heat and Thermodynamics


Particles of Matter

States of Matter


Electricity and Magnetism

Static Electricity

DC Electricity

AC Electricity



Wave Motion

Sound Waves - Acoustics

Visible Light Waves - Optics

Electromagnetic Waves

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Physical Science Resources

Experiments and Science Fair Projects

Interactive Graded Tests


Special thanks to Diego Mastrangelo, from the University of Buenos Aires in Argentina, for helping to edit many of the Physical Science lessons.

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