Curated OER
Is Dilution the Solution To Pollution?
Students demonstrate the meaning of dilution and concentration and how pollution can affect the water that you drink. They perform an experiment to calculate the final concentration and dilution factor of solutions. They record the color...
Curated OER
Solutions Worksheet
Students complete a worksheet on solutes in chemistry. They are given an equation in order to find the total mass solution, molarity, and molality.
Curated OER
Solutions
In this solutions worksheet, students determine the pH or molar solubility of different solutions. Students state is the mixture given forms a buffer. This worksheet has 20 problems to solve.
Curated OER
Chemistry: pH Probe
Young scholars conduct a pH probe of various household products including both bases and acids. In groups, they use litmus paper to test such liquids as amonia, vinegar, and detergent to discover which are acids and which are bases....
Curated OER
Selling Solutions
Students identify, design and present specific information to sell their idea for reducing the impacts of climate change. Students create a television or print advertisement. Students utilize technology to create a final project....
Curated OER
Acids and Bases
In this acids and bases activity, students conduct an experiment to determine if solutions are electrolytic or nonelectrolytic. After completing the experiment, students answer 1 short answer question.
Curated OER
Weathering Lab
In this weathering worksheet, students use limestone chips and acidic solutions of pH 2 and 7 to determine if acidic solutions contribute to the weathering of rocks. Students determine which pH weathered the rocks the most.
Creative Chemistry
Volumetric Analysis 2- To Standardize Hydrochloric Acid
In this volumetric analysis learning exercise, students use a standard solution they made of sodium carbonate to find the concentration of a hydrochloric acid solution by titration. Kids calculate the number of moles of sodium carbonate...
Curated OER
Acids, Bases, and Buffers
In this acids and bases worksheet, students test the pH of different solutions to determine if it is basic or acidic. Students complete 7 short answer questions based on their results.
Curated OER
Linear Equations 2
In this linear equations worksheet, 9th graders solve 8 various problems that are related to solving linear equations. First, they look at each equations and determine which variable to get on its own. Then, students solve each equation...
Curated OER
ME402: Growth of Yeast
Students investigate the growth of yeast in a sugar solution. They verify the pressure of carbon dioxide using bromothymol blue. Students are asked to describe the difference between the contents of the test tubes used and to explain...
Creative Chemistry
What is the Percentage of Copper in "Copper" Coins?
Whether in the UK or the US, the mass of the copper in a copper alloy penny can be determined. If you are in the US, note that on the lab sheet, a penny is identified as a "1p piece." The penny is dissolved by young chemists in nitric...
American Chemical Society
Recrystallization Test
Crystallize the answer to the question that has been investigated since the first of four lessons: What is the unknown crystal? Pupils have examined, crushed, and dissolved four samples plus an unknown as an exploration of the properties...
Curated OER
Hand Lotion Analysis
Students prepare a sample of a commercial hand lotion for analysis by HPLC to determine the percent composition of two common cosmetic preservatives, methylparaben and propylparaben. They perform the analysis and the data is evaluated to...
Cornell University
Fibers, Dyes, and the Environment
Nanofibers can be made through electrospinning or force spinning in order to reduce the negative impact on the environment. Pupils study the role of fibers and dye on the environment through a series of five hands-on activities. Then,...
Curated OER
GED Math: Internet Support for Varied Solution Methods
Twelfth graders, who teach GED classes, discuss math as an individual problem solving process rather than as a single method of getting the right answer. They visit Websites dealing with math problem solving situations and answer...
Curated OER
Open-Ended Problem Solving - Math
If you are looking for an end-of-the-year math assessment, then this lesson could be for you! Your mathematicians are assessed on their ability to solve difficult, multi-step word problems that take quite a bit of thought and...
American Chemical Society
Solubility Test
Make sure to consult the teacher's handbook, Inquiry in Action - Investigating Matter Through Inquiry, for two demonstrations that can be done to introduce solubility and measuring crystal mass before having the class conduct this...
American Chemical Society
Using Chemical Change to Identify an Unknown
If you discover an unknown powder, how do you determine if it is safe? Lesson uses four different tests to identify the properties of various powders that appear the same. Then scholars get an unknown powder and have to determine which...
Council for Economic Education
Satisfaction Please! (Part 3)
Understanding the US government's role proves very important in the American economy, especially for consumers. Scholars learn about how varying government agencies help them when facing an issue. The third and final resource in the...
Curated OER
Extra Credit: It’s No Fairy Tale
Students discuss their knowledge of payday loans and credit cards. In this Economics lesson plan, students complete a read an article and Q&A activity in groups, and play a vocabulary bingo game and a quiz game on payday loans....
Physics Classroom
Total Internal Reflection
Scholars work through three different activities applying their knowledge of total internal reflection (TIR). First, they simply identify which diagrams create TIR and which don't. Next, they match different types of boundary behaviors...
Physics Classroom
Color Pigments
Objects contain pigments that selectively absorb a wavelength of light, and our eyes only observe a very small range of these wavelengths. Scholars apply these two facts to three different activities. They identify the pigment in an...
Physics Classroom
Color Filters
Filters provide amusing changes to images in applications other than just Instagram! High school pupils apply their knowledge of colored filters to three different interactive sets of puzzles. They identify light colors that pass through...