Curated OER
Mass-Mass Problems
In this chemical reactions worksheet, learners calculate the grams of product from a given amount of reactants. This worksheet has 7 problems to solve.
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Reacting Masses Problems
In this reactions instructional activity, student determine the products of a reaction, balance an equation, and calculate the number of moles in an experiment. This instructional activity has 4 problems to solve.
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Limiting Reactant Problems
For this chemical reaction worksheet, students determine the limiting reactant in the equations given plus determine the amount of moles of product produced. This worksheet has 6 problems to solve.
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Stoichiometry
In this stoichiometry activity, students use balanced equations for chemical reactions to determine the percent yield and the mass of product produced. This activity has five problems to solve.
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Quantitative Relationships in Chemical Equations
In this chemical equations worksheet, students balance the equations and then determine the number of moles of product or reactant. This worksheet has 7 problems to solve.
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Newton's Second Law
Three memorable activities build on each other to give physics masters a firm grasp of Newton's Second Law. Pupils play with a lab cart on a flat surface and on an incline to confirm that force is equal to mass times acceleration. In the...
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2006 U.S. National Chemistry Olympiad Part III
In this chemistry Olympiad lab worksheet, learners are given two lab problems to design experiments. Topics include determining the mass percentage of a given compound and determining an unknown metal using quantitative and qualitative...
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Law of Conservation of Mass Worksheet
In this law of conservation of mass worksheet, students solve 10 reaction problems by determining the mass of a reactant or product.
Integrated Physics and Chemistry
Law of Conservation of Matter
Does mass change during a chemical reaction? Demonstrate the Law of Conservation of Matter while encouraging class members to be creative with a two-part lesson. First, learners use Alka-Seltzer® tablets and water to demonstrate the...
Institute of Electrical and Electronics Engineers
Assembly Line
Working under specific constraints and with designated criteria, groups work together to create a product using an assembly line process. In addition, they work through the entire engineering design process with an excellent graphic to...
University of Georgia
Endothermic and Exothermic Reactions
Equip your chemistry class with the tools to properly understand endothermic and exothermic reactions. Young chemists collect, analyze, and graph data to determine how the Law of Conservation of Matter is applied to chemical composition...
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The "Laws" and Principles of Chemical Reactions
In this chemical reactions worksheet, students review the law of conservation of mass, the principle of definite proportions, and balancing equations. This worksheet has 3 problems to solve.
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Limiting Reagents and Percent Yield Problems
Twelve questions about the various calculations of mass and yield are given here. There is significant practice of molarity calculations and consideration of the reactant and product balance.
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Paper Production
Students compare paper making by hand and by assembly line. In this manufacturing lesson, students compare and contrast the two main ways to make paper, by hand or by machine. Students research paper making and have a class discussion...
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Health: Overweight Youth
Investigate the primary causes for the increase in overweight youth and discover its impact on the health care system. After watching segments from the Bill Moyers Now program, your students develop campaigns to implement in school that...
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Phase Changes of Water
A micro-unit on the phase changes of water includes three laboratory activities. Junior scientists compare the densities of ice and water, and then they do the same for cold and warm water. They examine freezing and boiling temperatures....
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Workers in Factories During the Gilded Age
Seventh graders experience what life was like in the factories during the Gilded Age. They explore the reasons behind the move for work place reforms during the Progressive Era. Students discuss the factors that led to work place reforms.
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Chemistry Lab: Solubility Product Constant of Sodium Chloride
In this solubility product constant of sodium chloride learning exercise, students gather the equipment needed and follow the procedures to determine the solubility product constant of a solute and demonstrate precipitation of a common...
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The "Laws" and Principles of Chemical Reactions
In this chemical reaction principles worksheet, learners read about definite proportions and the law of conservation of mass. Students read about how to balance a chemical equation. Then learners complete 20 fill in the blank, 2 short...
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Chemistry: Chemical Reaction
In this chemical reactions worksheet, students name the reactants and products, balance the equation, calculate the molecular weight of the reactants and products, and classify each reaction type. Students fill in a table of solubility...
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Activit #2 Matter: Is It Conserved?
Middle schoolers support the law of conservation of matter with evidence. They discuss the changes observed from the burning of the candle, and the differences in mass which are observed when the same reaction is carried out in an open...
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Stoichiometry
In this stoichiometry instructional activity, students balance equations, give the names of the reactants and products, and calculate how many grams of product could be produced with a given amount of reactant. This instructional...
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Determining Percent Composition
In this percent composition worksheet, students calculate the percent composition of compounds using their formula masses and masses of individual elements. They solve nine problems including calculating percent composition, finding...
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Changes In Matter, Not In Weight
Fifth graders investigate different objects and the examine the correlation of mass and weight. They conduct the experiment with the help of background information provided by the teacher and record observations before making...
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