Students will discuss the de Brogile Hypothesis and state the circumstances under which the wave nature of matter is observed. They will also calculate the wavelengths of matter waves.

Students create a synthetic dye and oxidize the dye and record the effects.

Students view a video about the formation of precipitates. They complete a worksheet that asks them to identify what makes a compound form and what holds it together.

Students describe how radioactivity relates to alpha and beta particles. Using their properties, they write a descriptive paper about the gamma rays and alpha and beta particles. They calculate q-values and the half-life of a given...

Students begin the lesson by being introduced to the currency of the Euro. As a class, they must decide which is worth more, the euro or a United States dollar. Using the internet, they determine the current exchange rate and complete...

High schoolers research chemical components of coal, as well as environmental health impacts of mining and burning coal. They discuss conservation of mass as it relates to combustion of organic compounds.

Learn how to balance equations in this tutorial. Tutorial includes videos, interactive activities, and practices.

An interactive tutorial on balancing equations.

Examine how one innovator is working to improve the way concert pianos are designed and tuned. This video focuses on the balance that needs to occur in an ideally tuned piano key and explores how David Stanwood calculated the balance...

An introduction to chemical reactions and an explanation of balanced equations.

[Free Registration/Login Required] SOL 3.25b Students balance equations. Activotes are used to practice Virginia SOL test released items.

How does one know if a chemical equation is balanced? What can be changed to balance an equation? Play a game to test ideas!

Explore balanced chemical equations in this tutorial. Tutorial includes videos, interactive activities, and practice to help students understand balanced chemical equations and the Law of Conservation of Mass.

This learning resource shares examples and explanations of how to balance equations.

In this instructional activity on addition and subtraction equations, 1st graders will learn to identify the equal sign and will practice balancing equations.

After learning about and reviewing the types of chemical equations and rules for balancing, students can practice balancing equations on interactive quizzes.

[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will balance a redox equation using the oxidation-number-change method. They will break the equation down into oxidation...

Use this tool to find out if expressions are equal to each other. If the pan balance levels out then the expressions are equal.

Practice your balancing chemical equations skills with this interactive exercise. Students are given equations that need to be balanced. Tutorial gives immediate feedback by telling the students they are correct or incorrect. After...

Want to figure out a magician's secret for a cool balancing trick? Use your algebra knowledge to discover how this magic trick was done.

[Free Registration/Login may be required to access all resource tools.] How to balance a chemical equation and using coefficients.

An interactive simulation with weights and scales that teaches about balancing chemical equations and conservation of mass. This simulation can either be downloaded or played online and includes handouts, lesson plans, and additional...

An exercise for students to practice balancing equations. Exercise gives one equation per page and after the students complete the problem it tells them whether their answer is correct or not. A good basic practice for students who need...

Use this narrated tutorial to help understand how to balance a chemical equation using coefficients and leaving formula subscripts unchanged. [9:35]