Cornell University
Investigating and Modeling Hardness
Model hardness testing with a self-designed hardness test. Young scholars rate the hardness of different types of aspirin using the Vicker's Hardness scale. They then relate hardness to the solubility of each aspirin tablet.
Beyond Benign
The Green Zine
It's time for your class to advertise what they've learned! The culminating lesson in the 24-part series asks scholars to use their newfound chemistry knowledge to create advertisements. Their magazine advertisements describe the health...
Cornell University
Unknown Powders
Create a little scientific magic within your classroom! Learners mix powders and liquids and identify chemical reactions. Based on the reactions, individuals determine the identity of various powders.
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...
Space Awareness
Transforming Water Into Acid ... And Back
Greenhouse gases affect marine wildlife in life-threatening ways. Through experimentation, your classes explore the acidification of water from the main greenhouse gas carbon dioxide. As they introduce carbon dioxide to water, a pH...
Space Awareness
Ocean Acidification
Learn the science behind ocean acidification and its effects on ocean wildlife. Young scientists conduct a laboratory investigation that monitors the acidity level of water. While burning a candle, learners capture the carbon dioxide in...
LABScI
Acids and Bases: Cabbage Juice pH Indicator
Explore the range of pH using an assortment of household liquids. Scholars create their own pH indicators from cabbage and determine the pH of several liquids. To further their exploration, individuals use the same liquids to create...
LABScI
Enzymes: The Spit Lab
Enzymes in our bodies each have a job to do. Learn the factors that affect the activity of some enzymes using the third activity of an informative 12-part biology series. A three-part laboratory activity asks teams to investigate how...
Chymist
Testing the Waters
Should you trust the water you drink every day? The hands-on activity has scholars test water from different sources for contaminants. Pupils perform chemical testing and make conclusions about pH, hardness, iron, chlorine, lead, and...
National Institute of Open Schooling
Ionic Equilibrium
Scientific studies show the older we get, the more acidic we become. The activity extensively teaches high schoolers about acids and bases. By the end of the 14th installment of 36, they can define and explain three concepts of...
Science Geek
pH Calculations
Performing calculations is for more than just mathematicians — it's an important science skill, too. Demonstrate the pH calculations using the slide show resource. The final resource of a seven-part unit introduces young scientists to...
Science Geek
Properties of Acids and Bases
It's all about that base! Teach the properties of acids and bases using the sixth slide show presentation in a series of seven. The lesson discusses acid and base properties and reactions. Pupils also see the effect on indicators when...
Polar Trec
Is There Salt in a Glacier?
What can conductivity tell us about a glacier? Groups analyze glacial melt to determine salt content through an analysis of the pH and conductivity measurements of two samples. Groups then determine the source of the salts.
Virginia Department of Education
Acid-Base Theory
Litmus paper, why so blue? A chemistry lesson includes a pre-lab activity, practice calculating pH, an experiment measuring the pH in acids and bases, a titration demonstration, and a titration experiment.
Virginia Department of Education
Acids and Bases
What did one titration say to the other titration? We should meet at the end point! Young chemists perform four experiments: dilute solution, neutralization, titration, and figuring pH/pOH.
It's About Time
Environmental Impacts and Energy Consumption
As scientists prove environmental impacts of using coal as an energy resource, do you think Santa regrets giving out so much of it? Through a demonstration of acid rain, pupils learn what makes it, where it occurs, the impact of it, and...
South Pasadena AP Chemistry
Acid-Base Equilibria: pH Practice
Across the top of the page is a large Z diagram representing varying degrees of acid-base equilibria. Advanced chemistry classes answer eight questions using the values listed for the H+ and the OH- ions that are part of the diagram and...
Curated OER
Chemistry 12 pH Worksheet
Emerging chemists find their calling as they calculate the concentration of hydronium and hydroxide ions and the pH and pOH for several solutions. In some cases, values are given, and in others, actual word problems are written out....
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
Changing Planet: Ocean Acidification - the Chemistry is Less than Basic!
A video and laboratory investigation are highlights to this lesson on acidification of ocean water due to increased atmospheric carbon dioxide. Using bromothymol blue (BTB) as an indicator, pupils analyze the amount of carbon dioxide...
Curated OER
An Introduction to Acids and Bases
Investigating pH is intriguing, especially with these activities designed for an introductory chemistry or physical science class. Pupils use litmus paper to distinguish acids and bases and then make indicators from food products. They...
Curated OER
Towers of the Lost City
Middle school marine scientists compare the pH change in distilled and saltwater as acetic acid is added one drop at a time. Then they compare the pH change in both when sodium hydroxide is added. This experiment demonstrates the...
Curated OER
Chemistry of Life Study Guide
Biology learners should understand a few chemistry basics. Here is a worksheet that introduces them to the concepts of chemical reactions, molecular bonding, and the unique combination of properties that make water vital to life....
Curated OER
Strong Acids and Bases
A straight-forward exercise awaits your chemistry charges. Two pages provide plenty of room for them to calculate the pH of five solutions, determine the number of hydrogen and hydroxide ions, and solve problems dealing with solutions....