Kenan Fellows
Balancing Equations Using Matrices
Matrices help solve systems of equations in chemistry, computer graphics, circuitry, probability, and more. The second lesson in a seven-part series focuses on using matrices to balance chemical equations. Pupils rely on the Law of...
Curated OER
Relating Moles to Coefficients of a Chemical Equation
Students investigate the coefficients in a chemical equation and their relation to moles. In this moles and coefficients lesson plan, students perform a single replacement reaction of copper (II) sulfate and zinc and find the ratio of...
Curated OER
Chemical Compounds
In this compounds worksheet, students practice balancing equations, determine formula mass, and calculate number of moles for given compounds. This worksheet has 7 fill in the blank and 3 problems to solve.
Virginia Department of Education
Matter and Energy: Equations and Formulas
Using simple materials, an informative instructional activity demonstrates the Law of Conservation of Matter and explains how to balance chemical equations. Young chemists perform experiments, analyze reactions, and balance chemical...
Virginia Department of Education
Average Atomic Masses
Facilitate learning by using small objects to teach the principles of atomic mass in your science class. Pupils determine the average mass of varying beans as they perform a series of competitive experiments. They gather data and...
Curated OER
Experiment on Measuring Reaction Rates
Learners investigate the rate of a chemical reaction. In this rate of reactions lesson plan, students use an electronic balance to measure the change in mass of a chemical reaction between hydrochloric acid and calcium carbonate. They...
Curated OER
Stoichiometry
In this stoichiometry worksheet, students practice calculating moles, molarity, and the concentration of a solution in molarity. This worksheet has 12 multiple choice questions and 3 problems to solve.
Curated OER
Penny Lab
In this percent composition worksheet, students carry out an experiment to determine the percent of zinc in a penny. They write a balanced equation for the chemical reaction they performed with the penny and hydrochloric acid.
Cornell University
Predicting Chemical Reactions
Prove the Law of Conservation of Mass through a lab investigation. A well-designed lesson asks groups to combine materials and monitor indicators for chemical reactions. Measuring the mass of the reactants and products allows individuals...
Curated OER
The Mass of the Moon
In this mass of the Moon worksheet, students use the lunar orbit and the orbit period to determine the mass of the Moon. They solve 4 problems including finding the mass of the Moon, determining the ratio of the Moon's mass to the...
Curated OER
Motion in Two Dimensions
Two activities employ the use of kinematic equations for determining projectile ranges. They both require the use of a toy dart gun. Included in this resource are both the teacher's guide and student laboratory sheets. This is an...
Curated OER
Molarity, Excess and Percent Yield
In this molarity worksheet, students are given balanced equations and they are to calculate the mass or volume of reactants and products. Students calculate the theoretical, percentage, and actual yield for chemical equations. This...
Curated OER
Chemistry: Balancing Chemical Equations
Eighth graders practice balancing chemical equations. In this chemistry lesson, 8th graders explain why it is necessary to balance equations. They complete practice worksheets individually.
Beyond Benign
Stoichiometry Challenge
Have you been searching for environmentally friendly chemistry experiments to use in your high school laboratory? This stoichiometry experiment replaces a conventional aluminum to alum lab by using sodium carbonate and calcium chloride...
Curated OER
Mathematical and Chemical Relationships of Stoichiometric Problems
Learners review key words used in stoichiometry such as mole, molar mass, Avogadro's number, and mass - mole relationships. They participate in a series of small experiments to explore solving stoichiometry problems in the laboratory.
University of Georgia
Stoichiometry of S'mores
How fun would it be to teach the concept of stoichiometry while allowing your chemistry class to assemble a classic campfire treat? This fun and engaging activity allows pupils to explore the principles of the chemical theory while...
Kenan Fellows
Isotopic Pennies
Many people confuse atomic mass and atomic numbers. The sixth of seven lessons in a unit requires scholars to find the weight of different groups of pennies. Then, they must solve how many of each type of penny exists in a closed system...
Chymist
An Experiment in Alchemy: Copper to Silver to Gold
Use chemistry to change pennies into gold coins! The experimental procedure leads learners through the process of changing copper pennies to silver and then to gold. They record the mass of each coin through every step of the experiment.
Curated OER
The Energy Debate - Stoichiometry
Students determine crude oil can be separated into useful fractions by a process of fractional distillation. They write a balanced equation for the reaction between a hydrocarbon and oxygen.
Curated OER
Transformations of Energy
Seventh graders investigate the relationship between energy and matter, and measure the mass of various objects. They listen to a teacher-led lecture about potential energy, and in small groups measure the mass of various objects such...
Curated OER
Robo-Pull
Students solve linear equations using two steps. In this algebra lesson, students add, subtract, multiply and divide to solve linear equations. They apply concepts of equations to a robot pulling cargo.
Curated OER
Balancing Chemical Equations
Ninth graders explain how atoms and molecules form different substances during chemical reactions and how these processes require losing, gaining or sharing electrons. They correctly write chemical formulas and show how a balanced...
Curated OER
Mystery Liquids: Linear Function
High schoolers determine the linear equations of the density of water and oil by collecting data on the mass of various volumes of each liquid. They construct scatter plots from the data and use these to write the linear equations for...
Curated OER
Don’t be a Stoic about Stoichiometry
Students review balancing chemical equations. In this chemistry lesson, students calculate moles of an unknown substance based on stoichiometric relationships in the balanced equation. They cite applications of stoichiometry in the real...