Curated OER
Hess' Law Data Sheet
In this Hess' Law worksheet, students write their data and calculations from the lab they performed on Hess's Law. They calculate the heat of reactions per mole of substances used and calculate the theoretical heat of reaction and...
Curated OER
Bond Energies
Before completing this learning exercise, chemists are supposed read a portion of their textbook. Assign the chapter on bond energies, endothermic, and exothermic reactions. Then have your class answer the questions and fill in the data...
Rochester Institute of Technology
Molecules and Fuel Cell Technology
A fuel cell is where the jailer keeps gas guzzlers. Scholars review chemical reactions, chemical bonds, and chemical structure in order to apply these concepts. Participants construct fuel cell kits, using electrolysis to run the car and...
Curated OER
Module 7 Revision Guide - Chemistry
Two versions of this handout are provided, the second with more detailed information on the same topics. Chemistry aces survey chemical reactions, heat energy transferred, and the action of enzymes by reading this resource. You can...
Curated OER
BioFuels: The Chemistry and Economics of Alternative Fuels
Junior chemists manufacture biodiesel in the lab. In this exercise, they check the purity of the biodiesel using thin layer chromatography. They also calculate its density and heat of combustion. They are sure to rise to the challenge...
Curated OER
The Transfer of Energy 1: Thermochemistry
Budding chemists achieve a basic understanding of the role of heat in chemical reactions. An online worksheet gives learners instructions and questions to answer as they investigate the Chem4Kids website and perform a hands-on lab...
Curated OER
Chemistry Module 2 - Specifications
A valuable resource provides a list of concepts that young chemists should grasp. The topics include energetics, kinetics, equilibria, redox reactions, and the halogen group. Employ this as a guide for your own curriculum planning, or a...
American Chemical Society
Exothermic, Endothermic, and Chemical Change
Scientists can't observe bonds breaking or forming, so how do they distinguish between exothermic and endothermic reactions? Young scholars complete two experiments to do just that. They monitor temperature change and calculate the...
Curated OER
The Transfer of Energy 3: Rust and Corrosion
Students research the type of chemical reaction that occurs when metal rusts. They conduct an experiment looking at the rate of corrosion in steel wool. This is lesson three in a three lesson unit on the transfer of energy.
Curated OER
Calorimetry Problems
In this calorimetry activity, students complete 30 problems. They calculate the change in heat of a system given the mass and the change in temperature of the system. Students also find the final temperature of a reaction given the...
Curated OER
What's the Matter? (Living and Non-Living Things)
Understand how chemical reactions recombine atoms to create the "chemicals of life". An experiment, showing the basic chemical reactions of an iron nail or a match, helps young children start their understanding of permanent changes.
Curated OER
For a Change
Here is a instructional activity that has young scientists think about things that been changed as a result of heating and cooling, and if they can be returned to their original form. There are seven scenarios to consider, and they must...
American Chemical Society
Preparation and Combustion of Biodiesel
The United States is the world's largest producer of biofuel. During an in-class investigation, young scientists produce their own biodiesel. They burn a sample of it to determine the heat of combustion. Then they discuss the results...
Royal Society of Chemistry
A Reversible Reaction of Hydrated Copper (II) Sulfate
How can removing water change the color of a substance? Lab partners remove the water of crystallization from hydrated copper (II) sulfate, record their observations, then rehydrate the solid. The resource is printable and contains ideas...
National Institute of Open Schooling
Spontaneity of Chemical Reactions
Do spontaneous reactions really occur? Activity 12 in a series of 36 focuses on spontaneity of chemical reactions. Learners read about, discuss, and answer questions pertaining to entropy, explain the third law of thermodynamics, explore...
Curated OER
Did a Chemical Reaction "Really" Occur?
Students perform several different experiments to observe signs of chemical reactions and determine if reaction has occurred, use search engine to find Internet sites pertaining to chemical reactions, and write up brief summary of site.
Curated OER
Stoichiometry
In this stoichiometry worksheet, students solve thirty problems using the process of stoichiometry to find moles, molecules, and masses of substances in chemical reactions. Students balance chemical equations, find limiting reagents and...
Curated OER
Determining the Enthalpy Change of a Reaction
In this enthalpy of reactions worksheet, students use a known amount of copper (II) sulphate solution and an excess of zinc powder to calculate the enthalpy change of the reaction. Students measure the temperature change over the course...
CK-12 Foundation
Hotpack - Coldpack
Chemistry can help athletes and others protect and treat injuries. Use the interactive activity to explore the chemical reactions in instant hot and coldpacks. Learners manipulate the type of salt in the pack and watch the reaction take...
Curated OER
Oxidation of Iron - An Example of a Combination Reaction
Here are photos and general instructions for demonstrating two oxidation reactions with your physical science beginners. They use salt and hydrogen peroxide to cause iron filings to rust, and they combine hydrogen peroxide with a piece...
Curated OER
Heat of Formation using Hess's Law Lab
In this heat of formation learning exercise, students determine the heat of formation for magnesium by combining 3 given reactions and using Hess's Law. Students then complete a data calculations chart for each reaction.
Curated OER
Energy in Chemical Reactions
In this chemical reaction worksheet, students determine if reactions are exothermic or endothermic. Students define enthalpy and calculate how much heat is released or absorbed during reactions. This worksheet has 1 matching, 1 fill in...
Curated OER
Heat Loss and Gain in Physical Changes and Chemical Reactions
Pupils measure the heat of physical and chemical changes in reactions. In this chemistry lesson students determine at what extent changes emit or absorb heat.
Curated OER
Exothermic Reactions
Students experiment, observe, measure, and analyze what occurs during an exothermic reaction. They safely design an experiment, control variables, and properly dispose of materials.
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