Curated OER
Types of Reactions
In this reactions worksheet, students complete the given reactions by writing the products. Students do examples of composition, decomposition, single replacement, double replacement, and combustion reactions. This worksheet has 54...
Curated OER
Percentage Composition and Empirical & Molecular Formula
In this compounds worksheet, students determine the empirical and molecular formulas for given compounds. This worksheet has 10 problems to solve.
Columbus City Schools
To Measure its Mass or Volume?
Atoms, elements, and molecules, oh my! Teaching the fundamentals of chemistry to curious sixth graders has never been easier to accomplish. Here is a resource that pulls together everything needed to get them off to a good start,...
Virginia Department of Education
Finding the Formula and Percent Composition
Do you have mole problems? If so, call Avogadro at 602-2140. The lesson starts with pupils working independently to solve for molar mass of ionic compounds. Then they learn to solve for percent composition and later perform an...
It's About Time
What Determines and Limits an Atom's Mass?
Provide learners with the tools to further understand nuclear energy and isotopes. Young chemists investigate the components of an atom's nucleus, use symbols to represent various isotope forms, and use the percent abundance of an atom's...
Brigham Young University
Understanding Design, Composition, and Color
The set for a play combines design elements (style, line, shape, mass, measure, position, color, and texture) and principles of composition (unity, harmony, contrast, variation, balance, proportion, and emphasis) to create a particular...
Curated OER
The Building Blocks
This PowerPoint is a comprehensive review of all the facts related to an atom's basic structure and function. What makes this unique is that it is geared toward an audience of junior geologists. After introducing the periodic table of...
Curated OER
Composition of the Atom
Learners investigate the structure of the atom and its composition. For this atom structure lesson, students find the area of cut out circles and drop pens into the circles. They count the number of marks in the circles and relate their...
Curated OER
Mass Percentage and Empirical Formulas
In this chemical compounds worksheet, students write the chemical formula and formula mass for given compounds. Students will compare the number of moles of compound in different samples. Students determine empirical formulas. This...
Curated OER
Finding Mass
Student measure mass to discover how pennies have changed in their composition. In this measurement lesson, 8th graders investigate through an open-ended problem to discover how the US pennies composition changed in the 1980's.
Curated OER
Measuring for Chemistry: Moles, Compounds, and Conversions
Through a station rotation activity, scientists complete 9 chemistry activities to complete this interactive worksheet. Concepts include molar masses, percent composition, accuracy vs. precision, mass of an object, scientific notation,...
Curated OER
Percentage Composition
In this chemical compounds learning exercise, students determine the empirical formula or the molecular formula for the compounds given. Students calculate percent composition. This learning exercise has 10 problems to solve.
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...
Curated OER
How To Build a Planet From The Inside Out!
High schoolers read about the Spitzer Space Telescope and the technology used to learn about planet composition. They calculate the radius of a planet, the size of a planet, the average density of a planet and the likely core composition...
Curated OER
The Mathematics of Chemical Formulas
Wow! This is one of the most exhaustive presentations on finding chemical formulas that you will come across! Beginning with the basics, and leaving junior chemists with procedures and concrete examples, this PowerPoint certainly...
Curated OER
Atomic Mass, Formula Mass and Percentage Composition Calculations
In this elements learning exercise, students calculate the relative formula mass and percentage composition calculations for given elements. This learning exercise has 16 problems to solve.
Curated OER
Mass % and Empirical Formulas
In this chemistry worksheet, learners calculate percent composition and determine the empirical formulas of compounds to complete 3 problems.
Curated OER
Using Mass Balance to Understand Atmospheric CFCs
Students use an interactive online mass balance model to observe levels of chlorofluorocarbons over the past few years. Students evaluate the influence protocol emissions will have on the future levels of CFCs.
Curated OER
Mining an Ore
Learners investigate how to determine the percent composition of a mineral in an ore. In this mining an ore lesson plan, students use chocolate chips cookies to represent an ore and they remove precious minerals (the chocolate chips)...
Curated OER
What Can We Measure about Chemicals?
In this measuring chemicals worksheet, students determine the accuracy and precision of measurements and distinguish between the two. They find the percent composition of compounds, the molar mass of compounds and the volume of gases at...
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.
Curated OER
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...
Curated OER
Gravity Gets You Down
Students investigate the force of gravity and how it effects different objects that are put into acceleration when applied the experiment of free falling. They drop different objects that have a variety of masses and some that cause air...
Curated OER
Early Atomic Theory Homework
In this early atomic theory learning exercise, high schoolers answer 4 questions about the Law of Definite Proportions, the Law of Conservation of Mass and Dalton's Laws. Students are given 5 statements to determine if each true...