Overview and Index

Welcome to the World Around Us! Here, you will find short but rich discussions about topics introducing chemistry and physics. It is a companion site for a high school science class.

Also, there are some companion videos that can be found on YouTube HERE.

 Here is the index to all of the articles grouped by topics.

Reference
 Solving Science Problems: Three Important Steps
Formula Quick Look


Foundations

Physical Quantities: Quantities and Units 
Equivalency and Conversion 
Science and the Scientific Method
Accuracy and Precision 


Matter
Types of Matter
Physical Properties of Matter   
Chemical Properties of Matter
Intensive and Extensive Properties

Kinetic Theory of Matter 
States of Matter 
Density
Gas Laws 
Gas Laws and Number of Molecules 
States of Matter and Phase Changes 

Atomic Structure
Atomic Theory
Subatomic Particle Configuration 
Chemical Reactions
The Law of Definite Composition
The Periodic Table
Reading Chemical Equations 
Balancing Equations and Reactions 
Balancing Equations and Reactions with Molecule Units
Balancing Equations and Conservation of Matter 
Balancing Chemical Equations: Summary and Recap
More About Coefficients in Chemical Equations
The Periodic Table Revisited—Columns and Valences
Types of Reactions 

Physics of Motion
Concepts of Motion
Motion with Constant Velocity or Speed 
Elapsed Time 
Concepts of Acceleration 
Acceleration and Average Velocity 
Displacement and Acceleration 
 Acceleration and Average Velocity—Finding Acceleration
Acceleration, Velocity, Distance, and Time Revisited 

Force and Newton's Laws
Concepts of Force 
Adding Forces 
Finding the Direction of Forces, Easy Mode 
Units, Variables, and Formulas
Newton's Second Law 

Force, Work, and Energy
Concepts of Force, Work, and Energy
The Transfer of Thermal Energy  

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