In this interactive object, the learner practices identifying charges on ions.
By Jill Larson
In this interactive object, the learner examines how pressure and volume relate to each other.
The Mole and Avogadro's Number
By Debbie McClinton, Dr. Miriam Douglass, Dr. Martin McClinton
Learners examine how chemists use moles to "count" atoms by weight. Examples are given.
The Solid State
In this well-illustrated object, learners examine the structures and properties of the four types of solids: molecular, metallic, ionic, and covalent network. Five interactive questions are provided.
Energy in Chemical Reactions
By Dr. Miriam Douglass
In this animated and interactive object, learners examine kinetic and potential energy as well as the first law of thermodynamics and the flow of energy between a system and its surroundings. Students also answer questions about exothermic and endothermic reactions
Using an Indicator
By Janet Braun, Barbara Anderegg
Students read about the basics of using an indicator.
Deriving the Formulas of the Power Wheel
By Ron Wallberg
Use Ohm's law, Watt's law, and the power equation to derive formulas for the DC power wheel.
The Difference Between -(6)Squared and (-6)Squared
By Arlene Smith
In this learning activity you'll calculate problems using the negative both inside and outside of the parenthesis.
Multiplying and Dividing Signed Numbers
By Mona Wenrich
Students read the rules used in multiplying and dividing signed numbers. They view examples and work practice problems.
Multiplication of a String of Signed Numbers
Students read how to organize their work when multiplying more than two signed numbers. A review and practice problems complete the activity.
Basics and formulas for Spreadsheets
This game requires students to solve equations in order to reach the honeypot.
Variables On Both Sides of the Equation
This game has students practicing with equations that have variables on both sides of the equation.
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