Curated OER
What do Chemists See When they Look at Chemicals?
In this naming chemicals worksheet, students indicate the prefixes for naming compounds. They fill in a chart with the chemical names and formulas for alkanes. They draw the structural and molecular formula for propane and they draw and...
Curated OER
Empirical Formulas
High schoolers investigate empirical formulas for molecules. In this empirical formulas lesson plan, students use paper ions to form formulas and they show these are empirical formulas. They use ions of carbon and hydrogen showing...
Curated OER
Models of Hydrocarbons
Students construct models of hydrocarbon molecules using candy and toothpicks. For this hydrocarbons lesson plan, students are given a sheet with the molecular formulas of hydrocarbons. As a group, they construct each molecule using...
Curated OER
The World of Molecules
Students investigate molecules through 2 demonstrations and writing formulas for molecules given the oxidation states of the atoms. In this molecules lesson plan, students observe iron filings being separated from salt and pepper using a...
Curated OER
Diffusion
Students investigate diffusion using different solutions of chemicals placed in agar dishes. In this diffusion lesson plan, students observe 3 demonstrations of diffusion using perfume, food coloring in water and sugar cubes in water....
Curated OER
VSEPR Theory: Molecules with Lone Pairs
In this VSEPR theory worksheet, students build models of molecules using styrofoam balls and pipe cleaners to represent lone pairs. Students complete a chart for 12 molecules with valence electrons, Lewis structures, bond angles, lone...
Curated OER
Exam Review: Chemistry Calculations
In this chemistry calculations review worksheet, students solve 33 review problems about titrations, precipitates, pressure and volume of gases, combustion reactions, heat of combustion, molar concentrations and molecular formulas.
Curated OER
Unit 2 Quantities Review
In this quantities in chemistry worksheet, students solve 13 review problems about percent composition, significant digits, the mole, simple and molecular formulas, balancing equations, stoichiometry, limiting reagents and percent yields.
Curated OER
VSEPR Theory: Predicting the 3-D Shapes of Molecules
In this VSEPR theory learning exercise, students draw the Lewis structures for 5 molecules, they build the molecule, sketch the structure, show the bond angles and name the molecule. They also answer a question about the VSEPR theory and...
Curated OER
Molecular Mass and Percent Composition Worksheet
In this molecular mass and percent composition worksheet, students find the molecular mass of 10 compounds to three decimal places. They also find the percent composition of 7 compounds and express their answers to two decimal places.
Curated OER
IUPAC Rules for Naming Compounds with Functional Groups
In this naming compounds with functional groups worksheet, students read about using the IUPAC rules for naming these compounds and they draw structures for 3 -carbon, 2-carbon and 4-carbon molecules and give the names for each.
Curated OER
Organic Chemistry Review
In this organic chemistry review instructional activity, students answer 10 questions about different organic molecules. They draw structures, they name structures, they draw polymers, they identify the type of isomer given molecules are...
Curated OER
Eggshells
Students examine the porosity of eggshells. In this eggshell properties lesson, students observe dyed eggs, then peel the eggs to see if the color was able to go through the shell and discuss why eggshells have pores.
Curated OER
Density - An Introduction
Students experiment with objects of different densities. In this density lesson, students examine same-sized objects with different weights, then look at a teacher explanation of density. Students make wave bottles and a density jar to...
Curated OER
Diffusion of Molecules
Students conduct a series of experiments to observe factors that impact molecular movement. In this molecular chemistry instructional activity, students drop food coloring in water with different properties (hot, with ice, with alcohol)...
Curated OER
Molecules, Moles and Molar Masses
In this molecules, moles and molar masses learning exercise, students find the atomic masses of 8 elements, they write the formulas for 6 diagrams of molecules and they find the molecular masses of 12 compounds. Students also find the...
Curated OER
Nomenclature Review
In this nomenclature worksheet, learners are given the formulas for ionic compounds, molecular compounds and inorganic acids and they write their names. They also write the formulas given the names of ionic compounds, molecular compounds...
Curated OER
Naming Molecular Compounds
For this naming molecular compounds worksheet, learners are given 8 formulas of molecular compounds and they write the names for each. Students are then given 8 names of molecular compounds and they write the formula for each.
Curated OER
Heat Transfer & Phase Changes
In this heat transfer and phase change worksheet, students experiment with ice, salt, and milk to show the relationship between the temperature of a solution and its phase. Students turn milk from a liquid to a solid and graph the...
Curated OER
Polymers-Greaaaaaat Biiiiiig Molecuuuuuules
Students explore polymer properties. In this lesson about polymers, students perform an experiment to understand polymers, their properties, and that they are formed from small molecules. Students role play pretending they are polymer...
Curated OER
Physical and Chemical Changes-Notes
In this physical and chemical change activity, students watch a movie called the "Brain POP" about property changes and fill in the blanks to complete 8 sentences which are examples of chemical and physical changes.
Curated OER
Mixtures, Solutions and Matter
In this mixtures, solutions and matter learning exercise, students are given 12 terms and they cut out 12 definitions to match with the terms. Topics include types of mixtures, types of matter such as atoms, molecules and compounds and...
Curated OER
How Big is a Molecule?
Students calculate the size of a molecule. In this molecules and their sizes lesson plan, students find the size of an oleic acid molecule by using a measured amount of drops of oleic acid to find the volume of the sample, the thickness...
Curated OER
Lab: Determining the Number of Moles and Molecules Used Up In a Burning Candle
Learners find moles and molecules used when a candle burns. In this moles and molecules lesson plan, students calculate the initial mass of a candle and the mass of a candle after it burns for 3 minutes. They calculate the mass lost when...