In this reactions worksheet, students give the equation for the overall reaction, identifying the catalyst in the equation. Students create graphs and write out the rate determining step. This worksheet has 4 graphs, 2 short answers, and...

In this science activity, students explore the learning outcomes for a unit on chemical reactions. Students define 60 vocabulary words and answer a list of questions for each topic.

You're getting warmer. Groups conduct an experiment to determine which of four chemicals are in hot/cold packs. They learn about exothermic and endothermic reactions and use this knowledge to design a hot/cold pack that is small enough...

In this reactions worksheet, students state the differences between a coefficient and subscript and an exothermic and endothermic reaction. Students review the different types of reactions. This worksheet has 13 short answer questions.

Can your scholars solve the mystery of why salts dissolve? A virtual workbench allows them to experiment with temperature and solubility with no solution prep and no post-lab clean up! Users determine the solubility of a variety of...

Some like it hot! Scholars observe both exothermic and endothermic reactions as part of the carbon dioxide oxygen cycle. First, scientists demonstrate (or watch) a chemical reaction to create pure oxygen using fire for...

Some reactions absorb heat while others release it. Young scholars investigate both types of reactions in a 12-lesson unit. Each lesson presents a lab investigation that monitors temperature and considers the types of reactions taking...

In this reaction coordinates worksheet, students are given a diagram of the reaction coordinate for a reversible catalyzed and uncatalyzed reaction. Students answer eighteen questions related to the diagram.

In this equilibrium worksheet, students solve 8 problems to find the equilibrium constants and reaction rates of given equations.

In this entropy instructional activity, students define entropy and determine if reactions are exothermic or would occur spontaneously. This instructional activity has 10 problems to solve.

Students observe the chemical change that occurs when sodium iodide is dropped into a flask containing 30% hydrogen peroxide. They discuss how this exothermic reaction occurred as they study the chemical equation involved in the reaction.

In this energy and matter worksheet, students define 28 terms related to moles, matter, energy, the Law of Conservation of Energy, mass, properties of matter and states of matter.

Students investigate the art and science of pyrotechnics.  In this chemistry and computer lesson plan, students learn about the chemical basis of fire and structure of fireworks.  Students then apply their knowledge...

Begin with a demonstration of exothermic reactions and discussion of chemosynthesis. Your aspiring oceanographers research vent communities and then craft a mural of a vent community. This is a terrific method of introducing learners to...

The presentation offers a set of three problems related to temperature and equilibrium reactions. It walks through solving each, reminding pupils how to figure for the forward and reverse rates.

Students compare and contrast exothermic and endothermic reactions. In this chemistry lesson plan, students perform experiments to determine whether heat was released or absorbed in a reaction. They share their observations in class.

In this kinetics learning exercise, students define 7 terms related to the energy of reactions, they find the average reaction rate in a reaction, they sketch an energy diagram for an endothermic reaction and they compare exothermic and...

Viewers learn how to identify the substances in a chemical reaction, how to balance it, and the different types of chemical reactions by watching a presentation that also includes a review of monomers and polymers. The presentation...

Stephen Perry invented and patented the modern rubber band in 1845. Young scientists put his discovery to work as they use rubber bands to observe entropy and enthalpy. They determine the change in free energy to figure out if it...

Hiking chemists have an advantage! Young scholars use a virtual lab to conduct an experiment to create an exothermic reaction. The goal is to create enough heat to warm a meal during a hike in the rain.

In this physical vs. chemical change worksheet, high schoolers answer 10 questions about identifying chemical and physical changes. They identify exothermic and endothermic reactions and the parts of a chemical equation. Students answer...

This worksheet focuses on writing equilibrium constants. Students work to determine the direction of reactions, concentrations of different substances, and equilibrium constants.

In this chemical reactions worksheet, students determine what is true about a system at equilibrium and give examples of macroscopic properties. Students determine minimum enthalpy and maximum entropy for reactions. This worksheet has 2...

Students demonstrate that setting of plaster and cement is a change, which involves a release of heat energy, use data collected experimentally to construct comparison graphs and analyze the graphs to make predictions about future...