Pingry School
Determination of the Percent Hydration and the Simplest Formula of a Hydrate
Does the crystal structure of a hydrated solid determine the proportion of water absorbed, or does the application of heat change the absorption? Scholars experiment with both variables to determine the answer. They add their collected...
Royal Society of Chemistry
A Reversible Reaction of Hydrated Copper (II) Sulfate
How can removing water change the color of a substance? Lab partners remove the water of crystallization from hydrated copper (II) sulfate, record their observations, then rehydrate the solid. The resource is printable and contains ideas...
Curated OER
Chemistry Module 5 - Specifications
While this resource does not provide problems for chemistry learners to solve, it outlines skills that they should have and concepts that they should grasp. Topics include thermodynamics, periodicity, redox equilibria, transition metals,...
Curated OER
Laboratory: Hydrated Salts
In this hydrated salt worksheet, learners answer questions after completing a lab experiment using a hydrated salt. The calculate the empirical formula for the hydrate, they name the hydrate and they determine the mass of the water in...
Curated OER
Hydrates Worksheet
In this chemistry activity, learners look for the concepts connected to hydrates and answer the variety of questions given for the assessment.
Curated OER
Chemical Equilibrium
In this chemical equilibrium worksheet, students review hydration, dissociation, and colligative properties. Students also review Le Chatelier's principle. This worksheet has 15 short answer questions and 12 problems to solve.
Curated OER
Chemistry And The Nitrogen Cycle
Students investigate the factors that compose the nitrogen cycle. The harmful effects of acid rain and ozone depletion are also discussed in the lesson. Students define the nutrient that is often limiting to plant growth through...
Curated OER
Exothermic Rehydration of Gypsum
Students observe exothermic reactions in the lab using plaster. In this chemistry lesson, students collect data from their experimental set up every five minutes. They explain the different stages in the hardening of plaster.
Curated OER
Water Alchemy
After reading "Aquatic Alchemy," an article about recapturing water for reuse when in space, your class will use calcium hydroxide or hydrated lime to purify cloudy water. Geared toward high school chemistry or environmental science...
Curated OER
Predicting the pH of Salt Solutions
A single page provides you with lecture notes for your lesson on hydrolysis. Introduce your chemistry class to Bronsted-Lowry theory by explaining the hydrolysis of acidic cations and basic anions. Show them how the resulting pH can be...
Curated OER
This Life Stinks
Chemosynthetic communities of cold seep areas are considered in this lesson. Working in collaborative groups, marine biology or oceanography learners research and prepare a report about oxidation-reduction reactions involved with...
Curated OER
Introductory Lesson on How pH Levels are Determined
Students explore pH levels of different substances. In this lesson about pH, students work together in three to four groups to test substances. moving between three different stations performing tests on the substances to determine...
Curated OER
Corrosion & Rust
Young scholars examine how and when rust and corrosion occur. In this corrosion lesson students complete an experiment to see why metals rust.
Normal Community High School
Golf Ball Lab
The first golf balls were made of wood and would only last for a few games. Modern golf balls last a lot longer but they don't float. The presentation provides the directions for a lab to determine the minimum amount of salt needed to...
Kenan Fellows
Absorbance Curves: Using Spectrophotometers to Quantize the Effects of a Strong Acid on a Buffer
The Henderson-Hasselbalch equation combined logarithmic terms with the application of carbonic acid as a buffer solution. Scholars learn investigate equation and its applications through hands-on experiments. They collect data and...
Kenan Fellows
Qualitative Kinetics: Examining the Effect of an Enzyme on a Reaction
Scholars learn about kinetics and buffers as they use qualitative and quantitative methods to understand enzyme rates and buffer capacity. The application of Beer's Law and spectrophotometry solidifies pupils' knowledge in the first of...
Curated OER
Chemosynthesis for the Classroom
Explorers set up Windogradsky columns with local mud so that they can culture microorganisms. After three and six weeks they make observations of the mud and the organisms growing in it. In this way they observe succession and relate...
Curated OER
Interpreting Chemical Formulas
In this chemical formulas worksheet, learners determine the number and type of each atom and the total number of atoms for the given formulas. Students complete 10 problems.
Curated OER
You Are What You Eat (Grades 5-8)
Students gain an enhanced understanding of the relationship between proper nutrition and good health. Through use of video, hands-on activities and interaction, students measure energy in food, and recognize sources of vitamins and...
Curated OER
Stoichiometry
In this stoichiometry worksheet, students review mole conversions, percent composition, empirical formulas and molecular formulas. This worksheet has 6 problems to solve.
Curated OER
Bronsted Acids and Equilibria
In this acids and bases worksheet, learners give the Arrhenius and Bronsted definitions of an acid and base. Students determine the conjugate acids and bases and determine the stronger acids or bases from given compounds. This worksheet...