What Happens When Chemicals are Put Together?

Prove the Law of Conservation of Mass through a lab investigation. A well-designed lesson asks groups to combine materials and monitor indicators for chemical reactions. Measuring the mass of the reactants and products allows individuals...

If your pupils think a catalyst is a list of their cats, then this might be the lesson for you! Young chemists study the effect of temperature, catalysts, concentration, and particle size on reaction rates during four different...

Graphic organizers, photos, diagrams, and text bring the world of chemical reactions to life. By viewing this presentation, young chemists learn how to recognize when a chemical reaction has occurred, and how to balance chemical...

How are chemical reactions like dating? A collision must first occur! In this hilarious approach to speeding up chemical reactions, viewers find out that five changes can increase the rate of reaction: smaller space, increased number of...

Chemical reactions are happening all around us every second of every day, but what exactly causes these changes to occur? Using easy-to-understand analogies, this video explains how the concepts of enthalpy and entropy determine the ways...

This web-based activity gives students an opportunity to write chemical reactions, balance chemical equations, and explain what is happening during a given chemical reaction. Also addressed is the effects of concentration and temperature...

What better way is there to introduce conservation of mass than a few simple experiments? Young chemists conduct two chemical reactions, take the masses of reactants and products, then compare their results to determine differences in...

Make the microscopic world of chemical reactions come to life. An engaging video demonstrates a methane-oxygen reaction. Learners see the reaction take place and observe the chemical equation being balanced. 

Learn from colleagues by initiating a professional development discussion. An episode from the Good Thinking series analyzes strategies for teaching chemical reactions. Using examples from the classroom, the video discusses the...

Learners recognize the concepts of the five general types of chemical reaction: combination, decomposition, single replacement, double replacement and combustion. They practice classifying chemical equations and determine the moles in a...