Curated OER
Chapter Review Topics for Exam 2
In this chemistry chapter review activity, students examine their knowledge of equilibrium, Brønsted acid, and pH value as they respond to 25 short answer questions.
Curated OER
Moles Worksheet
In this chemistry worksheet, students identify and write how many significant figures they would use for each problem. Then they round the answers to the appropriate number of significant figures. Finally, students calculate the mass of...
Virginia Department of Education
Properties of Compounds and Chemical Formulas
Young chemists have unknown compounds they need to sort. Performing three different tests on each, the chemical behaviors they observe become the basis for data analysis.
Virginia Department of Education
Matter and Energy: Equations and Formulas
Using simple materials, an informative lesson demonstrates the Law of Conservation of Matter and explains how to balance chemical equations. Young chemists perform experiments, analyze reactions, and balance chemical equations...
Curated OER
Simple Chemical Equations
Eighth graders interpret the chemical symbols and shorthand used for molecules and equations. Through guided practice, 8th graders work to decipher and interpret the symbols for chemical equations. An opportunity for independent...
Virginia Department of Education
Elements and Electron Configuration
It's electronic! Pupils uncover elements and their electron configurations as they explore mass, groupings, correct charges, and sliding theory. Young scientists learn creative ways to remember various elements and correctly...
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...
Virginia Department of Education
Molar Volume of a Gas
What is a chemist's favorite plant? Stoichiome Tree! Scholars produce hydrogen gas by reacting magnesium with hydrochloric acid. Then they calculate the molar volume of the gas produced before answering assessment questions.
Virginia Department of Education
Solution Concentrations
What happens when you combine 6.022 times 10 to the 23 piles of dirt into one? You make a mountain out of a mole hill. Scholars use dehydration to obtain percent composition and then calculate the molarity of the original...
Virginia Department of Education
Radioactive Decay and Half-Life
Explain the importance of radioactive half-life as your high school biologists demonstrate the concept by performing a series of steps designed to simulate radioactive decay. Pupils use pennies to perform an experiment and gather data....
Royal Society of Chemistry
Testing for Gases
If most gases are invisible, how do we know so much about them? Pupils practice associating the name, formula, testing method, and outcome for four common gases using an interactive. Users build on the content of their first puzzles to...
Royal Society of Chemistry
Formulae of Compounds
Many people confuse the chemical formulas for copper carbonate and copper oxide. A set of challenging puzzles review commonly confused compound names and their symbols. Through a series of four puzzles, pupils match the names and...
Curated OER
Oxyanions
In this oxyanions worksheet, students identify the common polyatomic ions. They write formulas and name polyatomic ions based on IUPAC rules.
Curated OER
Chemical Reactions
Learners work in groups to define chemistry vocabulary including the terms reactants, products, exothermic and endothermic. They then combine the group definitions to arrive at a consensus definition for the class. Students also listen...
Curated OER
Distinguishing Between Atoms
Every type of question is used to query young chemists about atomic structure. A vocabulary list tops the page before fill in the blanks, true/false, and matching questions are listed. This is a neatly formatted and pertinent worksheet...
Curated OER
The Groups and Electron Dot Diagrams
It's all in the family with this presentation! The halogen, alkali metal, and noble gas families are introduced to young chemists along with characteristic properties and colorful diagrams of electron shells. Viewers are then taught how...
Curated OER
Acid/Base Equilibrium
In this equilibrium worksheet, students solve nine problems related to acids, bases, buffers, ionization and calculations of pH.
Curated OER
Naming III-Identifying Problems Chemical Compound Names
In this naming chemical compounds instructional activity, students are given 9 lettered statements that they use to match with 10 statements about compounds. Students also review the rules for naming compounds by filling in 25 blanks to...
Curated OER
Mathematical and Chemical Relationships of Stoichiometric Problems
Students 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.
Curated OER
Stoichiometry
In this stoichiometry learning exercise, learners review definitions and equations associated with molarity, density, atomic mass, molarity, and dilutions. This learning exercise has 18 word problems.
Curated OER
The Photoelectric Effect in Photocells
Illuminate your physics class with this examination of a photovoltaic cell. Teach the structure and operation of the device using a diagram. Then make a human-powered, larger-than-life sized model of a PV cell. Learners become electrons...
Curated OER
Drawing Lewis Structures
In this drawing Lewis structures worksheet, students read about the 5 steps taken to draw Lewis structures for atoms and molecules. These include identifying the valence electrons, placing pairs of electrons between atoms to be bonded,...
Cornell University
Hydrophobic Surfaces—Deposition and Analysis
Couches, carpets, and even computer keyboards now advertise they are spill-resistant, but what does that mean? Scholars use physical and chemical methods to coat surfaces with thin films to test their hydrophobic properties. Then they...
Curated OER
Calculating Isotopes Review Sheet
For this isotopes review sheet, students determine the atomic mass for three elements and they answer questions about isotopes.