Curated OER
Visual Models of Solutions and Concentrations
Students model solutions with beakers of colored glass or plastic spheres. In this solutions lesson, students use beakers of colored spheres to represent pure substances. They mix the spheres to demosntrate solutions. They discuss...
Curated OER
Particle Theory of Matter
In this science word search worksheet, learners identify and locate words in a puzzle that relate to particle theory of matter. There are 24 words to locate in the puzzle and spell correctly.
Other
Chem Guide: Strong and Weak Acids
This page from a retired Chemistry professor explains the terms strong and weak as applied to acids. As a part of this it defines and explains what is meant by pH, Ka and pKa and emphasizes the importance of not confusing the words...
Khan Academy
Khan Academy: Bronsted Lowry Acid Base Theory
Understand the definition of Bronsted-Lowry acids and bases, strong and weak acids and bases, and how to identify conjugate acid-base pairs.
CK-12 Foundation
Ck 12: Physical Science: Solution Concentration
[Free Registration/Login may be required to access all resource tools.] Definition of concentration of a solution, the difference between concentrated and dilute solutions and how to calculate the concentration of a solution.
Chem Tutor
Chem Tutor: Solutions
An in-depth look at solutions and their properties. Includes practice problems for calculating solution concentration.