Henri-Louis Le Chatelier wrote many papers throughout his 85-year life, but he is remembered for one of his earliest discoveries, now known as Le Chatelier's Principle. The final lesson in an 11-part series encourages young chemists to...

The best part of learning about equilibrium is that nothing changes. Young chemists observe four demonstrations during this activity: equilibrium in a saturated solution, equilibrium with an acid-base indicator, equilibrium with cobalt...

Learners describe the Le Chatelier Principle. They participate in an experiment in which they observe the changes in an equilibrium system. They answer discussion questions to end the lesson.

Students explore Le Chatelier's Principle. For this lesson about chemical equilibrium, students do an experiment with several different activities . Students observe as they do the experiments and understand the outcome. Students become...

In this chemical equilibrium worksheet, learners review Le Chatelier's Principle and predict the direction of equilibrium shift for different changes to a chemical reactions. Students also review enthalpy and entropy. This worksheet has...

Students investigate the effects of adding or removing a reactant or a product on chemical equilibrium. In this equilibrium lesson plan, students add or remove ions to solutions to determine the effects on equilibrium. They make...

In this chemical equilibrium worksheet, students work with the LeChatelier's Principle to determine the effects of changes in concentration or partial pressure and the effect of changes in total pressure or volume. This worksheet has 9...

How does carbon dioxide affect the world's oceans? The final installment in a series of six lessons has pupils research ocean acidification, then conduct an experiment to witness the delicate balance that exists in our seas. Materials...

Students use the basic principles of Chemistry to determine pH levels. Elements of the Periodic Table are also included in this lesson.

Students explain the Chatelier's Principle. In this pH lesson, students identify factors that resist changes in pH of the ocean and why the ocean is becoming more acidic.

High schoolers study La Chatelier's principle and identify how carbon dioxide may affect pH.  In this coral lesson students complete a worksheet on pH and observe a lab.

Young scholars develop an understanding of what a reaction is and factors that affect it. They are introduced to: reaction mechanisms, reaction rates, reaction order, factors affecting reaction rates, Le Chatelier's Principle and...

In this equilibria worksheet, students answer 5 multi-step questions which pertain to equilibrium expressions and concentrations.

Students investigate the pH of various solutions with indicators. In this acids, bases and indicators lesson plan, students use a variety of indicators to test solutions for their pH. Students determine which indicators are the best to...

Students explain how equilibrium quantities are changed by temperature, pressure or different concentration of substances. They work together to complete equilibrium equations. They identify the relationship between absorption of light...

Students observe the effects of temperature change on the color of nitrogen dioxide and dinitrogen tetroxide by manipulating glass tubes containing the gases at equilibrium. Then, they write a balanced equation for the reaction and...