Curated OER
Physical And Chemical Changes
In this physical and chemical change activity, students solve 13 clues in a crossword puzzle focusing on rates of chemical reactions and changes in the state of matter.
Curated OER
Physical vs. Chemical Changes and "The Code"
In this chemical and physical change worksheet, students read about the differences between substances going through physical changes vs. chemical changes. They are given examples of each and evidence to look for in chemical changes....
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The Rates of Chemical Reactions
In this chemistry activity, students select answers to 8 multiple choice questions from the drop down box. They identify the factors affecting rates of chemical reactions.
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Physical vs. Chemical Changes
In this chemical reactions worksheet, high schoolers read about the differences between physical and chemical changes in substances. Then students identify situations as either an example of physical or chemical change. High schoolers...
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Rates of Chemical Reactions
Review key terms after your lecture about chemical reactions with this crossword puzzle. Eleven questions prompt students to refer to their textbooks, lecture notes, and prior knowledge. This assignment would be a good homework...
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Physical and Chemical Changes Crossword
In this chemistry worksheet, students 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.
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Rate and Concentration
Experimental data for a chemical reaction is available in a table. Chemistry cohorts use critical thinking skills to analyze the data and answer questions about reaction rates and reaction order. This worksheet is neatly formatted,...
National Institute of Open Schooling
Chemical Kinetics
Not all chemical reactions happen at the same rate because some, like explosions, occur quickly and some, like rusting, occur over time. Here, learners explore chemical reactions and their rates in the 16th lesson of 36. Through readings...
Pingry School
Chemical Equilibrium
We know about the light spectrum, the age spectrum, and sound spectrum, but do chemical reactions also occur on a spectrum? Young scientists experiment with partial reactions on a spectrum and observe the color changes. Then, they...
National Institute of Open Schooling
Chemical Equilibrium
Le Chatelier's interest in thermodynamics and building materials such as cement and plaster led to the Le Chatelier Principle in 1884. Activity 13 in a series of 36 extensively explores chemical equilibrium. Learners read about...
Curated OER
2002 U.S. National Chemistry Olympiad National Exam - Part I
As to be expected from the American Chemical Society Olympiad Examinations Task Force, this 60-question test tops the charts in terms of excellence. It consists entirely of multiple choice questions designed to assess a year's worth of...
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2007 U.S. National Chemistry Olympiad Local Section Exam
Sixty multiple choice questions cover the entire gamut of chemistry concepts. This is the local section of the U.S. National Chemistry Olympiad, where your chemistry candidates take a shot at entering the national competition. They...
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2000 U.S. National Chemistry Olympiad Part II
In this chemistry olympiad problem solving learning exercise, chemistry pupils solve eight problems on a variety of topics including periodic trends, phase changes, ionization reactions, catalysts and titrations.
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AP Chemistry-Chemical Kinetics
In this kinetics learning exercise, students find rate laws of reactions, they determine rate constants, they find rate-determining steps of reactions, they find half-life's of reactions and they determine the overall order of reactions.
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Reaction Kinetics and Rate Laws
For this reaction kinetics worksheet, students draw a graph of energy vs. reaction progress and determine the factors which change the speed of a reaction. Students learn about rate laws. This worksheet has 1 graph, 15 fill in the...
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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...
Creative Chemistry
The Reaction Between Magnesium and Hydrochloric Acid
In this rate of chemical reactions instructional activity, learners experiment with different concentrations and volumes of hydrochloric acid mixed with magnesium to explore the rate of chemical reactions. They measure the rates of the...
Curated OER
Chemical Energy
In this science worksheet, learners fill in the blank for 15 sentences about chemical energy. For example, "Chemical bonds hold_."
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Describing Chemical Reactions
For this chemical reactions worksheet, learners fill in 12 blanks with the appropriate terms related to chemical reactions. They also indicate if 4 statements are true or false and match 7 words with their descriptions. Students complete...
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PhysioEx: Chemical and Physical Processes of Digestion
In this anatomy worksheet, students complete 22 review questions in the format of short answer, table completion, and fill in the blank after finishing an online virtual experiment about the chemical and physical processes of digestion.
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Equilibrium Practice
In this chemical reactions worksheet, young scholars 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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Acids and Bases
In this acids and bases worksheet, students review the characteristics of acids and bases, pK values, factors that change the rate of reactions, and catalysts. This worksheet has 17 multiple choice questions.
Pingry School
Heat of Reaction and Hess's Law
Melting and burning might seem like opposites, but both exist as common examples of exothermic reactions. Scholars work with three different exothermic chemical reactions to determine the enthalpy changes. They measure and mix chemicals,...