Virginia Department of Education
Thermochemistry: Heat and Chemical Changes
What makes particles attract? Here, learners engage in multiple activities that fully describe colligative properties and allow the ability to critically assess the importance of these properties in daily life. Young chemists...
Science 4 Inquiry
Enzymes in Action
Enzymes play a role in almost every function in the human body. Scholars explore three variables related to the use of enzymes. They observe a catalase reaction, experiment with substrates, and examine reactions rates.
Curated OER
Calculating Rates
In this rates worksheet, students determine the rate of production or consumption for given reactions. Students write chemical equations in complete ionic form or net-ionic form. This worksheet has 6 problems to solve.
Curated OER
Kinetics and Temperature
In this kinetics worksheet, students calculate the value of the activation energy for reactions at given rate constants. This worksheet has 5 problems to solve.
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Equilibrium Practice
For this chemical reactions worksheet, students determine solubility product expressions, equilibrium constants, and equilibrium concentrations. This worksheet has 15 multiple choice questions and 3 problems to solve.
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2000 U.S. National Chemistry Olympiad Part II
In this chemistry olympiad problem solving worksheet, chemistry pupils solve eight problems on a variety of topics including periodic trends, phase changes, ionization reactions, catalysts and titrations.
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Speed me up, Scotty!
Students describe and define chemical reactions. They design a laboratory experiment, collect data and analyze data.
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Catalase Enzyme
Young scholars design and conduct an experiment to test their ideas about how to speed up or slow down the rate of an enzyme-catalyzed reaction. They have access to an array of physical and chemical factors that might influence enzyme...
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Acids, Copper, and Zinc
Learners observe chemical reactions using post-1982 pennies. They observe the reaction of an acid with zinc but not copper under the same conditions over a two week period.
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Chemistry Lab: Chemical Equilibrium
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...
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Chemical Equilibrium
In this chemical reaction worksheet, learners define equilibrium, determine what affects the progress of a reaction, and compare and contrast entropy and enthalpy. This worksheet has 5 fill in the blank, 5 short answer, and 16 problems...
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Energy and Metabolism
This four-page worksheet queries young biologists about the process of metabolism in the human body. They describe types of energy, laws of thermodynamics, and chemical reactions related to the processing of energy. Plenty of space is...
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Heat, Temperature, and Transfer
Physical science scholars discover an array of heat sources. They experiment to connect radiation to heat. They begin to understand thermal equilibrium. Then, they test to see if mass affects the rate of temperature change. Choose a few,...
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Reaction Rates-Catalysis, Concentration, Surface Area, and Temperature
Young scholars determine the meanings of concentration, surface area, and catalysis through an experiment. In this instructional activity about chemical reactions, students participate in an experiment. Young scholars complete three...
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Some Common Chemical Reactions
In this chemical reactions worksheet, learners compare and contrast corrosion and combustion reactions. This worksheet has 15 short answer questions.
Nuffield Foundation
Investigating Factors Affecting the Breathing Rate of a Locust
Do animals breathe faster when given more oxygen or more carbon dioxide? Young scientists observe the respiration rates of locusts under a variety of gas concentrations to answer that very question. They collect data, analyze the...
Curated OER
Chemistry 152 - Competencies
In this chemistry competencies worksheet, students calculate rate law, balance equations, determine pH of solutions, give the oxidation number for atoms, and write in formulas. This worksheet has 4 fill in the blank questions and 20...
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Approaching Equilibrium
Contrary to a common popular belief, equilibrium does not mean a reaction has stopped. An interesting presentation covers reactant concentrations and product concentrations. It describes the equilibrium as when the forward rate equals...
Cornell University
What Is Rust?
Why do metals rust differently? Scholars experiment with metal combinations in a hands-on activity. They create unique environments with different metals and compare the rate and amount of rust for each.
Curated OER
Bhopal - Runaway Reaction
Young scholars research and study the disaster of Bhopal to grasp the essential concept of controlling chemical reactions. They explain how the Bhopal disaster might have been prevented based upon their knowledge of factors affecting...
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Rate Determining Step and Catalyst Activity
Students work in groups to stuff as many envelopes as they can in 3-5 minutes. They use an assembly line method. Envelope stuffing is compared to a chemical reactions. The idea of catalyst is considered, and students determine a way to...
Beyond Benign
The Green Zine
It's time for your class to advertise what they've learned! The culminating lesson plan in the 24-part series asks scholars to use their newfound chemistry knowledge to create advertisements. Their magazine advertisements describe the...
Curated OER
Physical and Chemical Changes Crossword
In this chemistry worksheet, learners complete a crossword puzzle with 15 clues about both physical and chemical changes. Each clue lists number of letters for correct word.
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Answers for Physical and Chemical Changes Crossword
In this chemistry instructional activity, students are provided with the answers for a crossword puzzle containing 15 clues about physical and chemical changes.