This site provides an overview of the role of energy in chemical reactions.

In this activity, students explore reactions in which chemical bonds are formed and broken. Students experiment with changing the temperature and the concentration of the atoms in order to see how these affect reaction rates. They also...

The ingredients in Alka-Seltzer tablets undergo a chemical reaction that produces carbon dioxide gas as soon as the tablets hit water. Do you think you can cause the tablets to produce gas faster by breaking them into smaller pieces...

In this 21-day unit, students are introduced to the anchoring phenomenon-a flameless heater in a Meal, Ready-to-Eat (MRE) that provides hot food to people by just adding water. They complete investigations to collect evidence to support...

After observing a demonstration of a chemical reaction between a burning candle and the oxygen in the air, students use atom model cut-outs to model the reaction and see that all the atoms in the reactants show up in the products.

Students will conduct two chemical reactions: endothermic and exothermic. They will see an animation that shows that it takes energy to break bonds and that energy is released when new bonds are formed, and use that animation to explain...

Observe that chemical reactions follow the pathway the uses the least amount of energy in this simulation.

Understand chemical reactions by learning about enthalpy and entropy.

Learners will participate in a guided inquiry activity using manipulatives to learn how to balance chemical reactions. This activity was developed in cooperation with Michelle Holdbrooks at Thompson High School...

In this activity, young scholars carry out a chemical reaction in which two reactants (baking soda and hydrochloric acid) produce three products (sodium chloride, carbon dioxide gas, and water) and determine that the solid product...

A quick look into how to control the amount of products in chemical reactions.

Students analyze the chemical equation for the reaction between vinegar and baking soda. They observe that the gas produced in the reaction is also part of the products of the written chemical equation.

Watch molecules collide with enough energy that bonds break and form new bonds in a chemical reaction.

This tutorial provides an explanation of reaction rates in chemical reactions with examples and sample problems.

A detailed description of the different types of chemical reactions in organic and inorganic chemistry.

This video is a professional development resource that explores student misconceptions about atoms, molecules, and chemical reactions. It also gives some pedagogical approaches for approaching these subjects. [10:12]

[Free Registration/Login may be required to access all resource tools.] In this module, students will practice expressing the rates of chemical reactions, and they will also describe the collision theory as it relates to chemical reactions.

Students observe and investigate how a catalyst increases the rate of a chemical reaction while not becoming part of the products of the reaction.

The guided inquiry activity enables young scholars to identify the five basic types of reactions - synthesis or composition, decomposition, combustion, single replacement and double replacement. Students will also begin to predict the...

Students will be able to describe what happens in a chemical reaction, and identify types of chemical reactions.

What is a chemical reaction? Learn about chemical equations, the four types of chemical reactions, and other fun facts.

Observe reactions that produce gases in this lab activity! Students observe chemical changes as they evaluate the amount of gas produced. This lab activity includes both student and teacher instruction sheets.

Use these demostration video clips to help understand the energy changes in some chemical reactions.

A site discussing chemical reactions in chemistry including reaction rate, types of reactions, reagents, reactants, catalysts, and inhibitors.