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Worksheet
Curated OER

Acid Base

For Students 10th - Higher Ed
In this acid and base worksheet, students review the characteristics of acids and bases, how to calculate pH of a solution, and define a buffered solution. This worksheet has 16 multiple choice questions and 3 problems to solve.
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Worksheet
Curated OER

Chemistry Comes to Life

For Students 9th - 12th
Although biochemistry of the human body is a vital topic, it doesn't have a chapter dedicated to it in many biology textbooks. If that's the case with your text, you can use this resource as a guide for designing your own lecture and as...
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Lesson Plan
Curated OER

Soil Buffering

For Teachers 9th - 12th
Students observe the pH change of an acid mixture poured over soil in a filter. Since the buffering capability of soils differs, you may want to do this experiment with several different soil types.
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Worksheet
Curated OER

Solutions

For Students Higher Ed
In this solutions instructional activity, students determine the pH or molar solubility of different solutions. Students state is the mixture given forms a buffer. This instructional activity has 20 problems to solve.
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Worksheet
Curated OER

Buffer Solution Problems

For Students 10th - Higher Ed
In this buffers worksheet, students calculate the pH of a buffer solution and calculate the mass of a compound necessary to prepare a buffer solution with a specific pH. This worksheet has 8 problems to solve.
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Worksheet
Curated OER

Chemistry 115 Practice Exam 3

For Students 9th - 12th
Radioactive decay, pH, properties of elements, organic compounds, and stoichiometry are all touched upon through this practice chemistry exam. It always helps learners to take a practice test in preparation for the actual exam. This...
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Lesson Plan
Curated OER

Off Base

For Teachers 9th - 12th
Learners explain the Chatelier's Principle. In this pH lesson plan, students identify factors that resist changes in pH of the ocean and why the ocean is becoming more acidic.
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Worksheet
Curated OER

Acid/Base Equilibrium Problems

For Students Higher Ed
In this acid and base equilibrium worksheet, students calculate the pH of given acid and base problems using different starting materials. They are given information and hints as to how to work with acid/base equilibrium problems.
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Worksheet
Curated OER

Acids and Bases

For Students 7th - 10th
In this acids and bases learning exercise, students complete 32 fill in the blank and short answer questions on acidity or alkalinity. They color molecular diagram according to the key.
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Lesson Plan
Curated OER

Density of Rocks

For Teachers 9th - 12th
Given a variety of rocks, junior geologists calculate densities and correlate them to Earth's layers. As a simulation of continental crust, they experiment with how materials of differing density float in water. Finally, they compare the...
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Lesson Plan
Curated OER

DNA Extraction

For Teachers 7th - 8th
Learners participate in a lab activity in which they extract DNA from a strawberry. After mashing the strawberry into an even, smooth puree inside a bag, they add extraction buffer and mix the strawberry with the buffer. They filter...
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Worksheet
Curated OER

Chemistry Worksheet 4

For Students 9th - 12th
In this chemistry instructional activity, students determine the pH of a buffer solution to several problems given. Students write a balanced ionic equation for several aqueous solutions.
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Lesson Plan
Curated OER

Acid Rain Lesson Plan Activity 2 - Understanding the Difference Between an Acid And a Base

For Teachers 7th - 10th
Young scholars experiment to determine the difference between an acid and a base. They study the concept of adding a buffering agent to make an acid more basic. They study the pH scale.
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Worksheet
Curated OER

Solutions

For Students Higher Ed
In this solutions worksheet, students determine at what pH aspartic acid would be protonated. Students create buffer solutions with a certain pH and determine the solubility in certain solutions. This worksheet has 8 problems to solve.
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Worksheet
Curated OER

Other Aspects of Aqueous Equilibria

For Students 11th - Higher Ed
In this aqueous equilbria worksheet, students write the solubility product expressions for the given salts. Students determine what affects the solubility of salts. Students calculate the pH of a buffer solution. This worksheet has 14...
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Lesson Plan
Curated OER

Acid Rain

For Teachers 5th - 7th
Simulated acid rain, a dilute sulfuric acid solution, needs to be prepared for this demonstration. After a condensed lecture on acid rain, you will apply the solution to a sample of granite and a sample of limestone. Your young...
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Lesson Plan
Curated OER

DNA Extraction

For Teachers 9th - 10th
Students discover the basic structure of DNA and its function in living organisms by conducting an experiment in which they extract DNA from bananas using a lysis buffer solution.
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Assessment
New York State Education Department

US History and Government Examination: August 2010

For Students 9th - 12th Standards
Geography has played a complex role in America history. The Atlantic Ocean has served as a buffer to protect the United States from European Wars, but its proximity to Cuba, however, left it vulnerable to nuclear war during the Cuban...
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Assessment
Curated OER

2007 U.S. National Chemistry Olympiad Local Section Exam

For Students 9th - 12th
Sixty multiple choice questions cover the entire gamut of chemistry concepts. This is the local section of the U.S. National Chemistry Olympiad, where your chemistry candidates take a shot at entering the national competition. They...
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Lesson Plan
Curated OER

Off Base

For Teachers 9th - 12th
Students study La Chatelier's principle and identify how carbon dioxide may affect pH.  In this coral lesson students complete a worksheet on pH and observe a lab.
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Lesson Plan
Curated OER

pH

For Teachers 5th - 12th
Learners use a Colorimetric test to measure pH and gain the importance to life in an aquatic ecosystem pH is. They explore the dramatic effect pH level can have on a water body. Learners test the pH level of many water samples.
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Worksheet
Curated OER

Chemical Reactions

For Students 10th - Higher Ed
In this chemical reactions worksheet, students determine if solutions are acidic, basic, or neutral. Students give reactions' molecular equations and ionic equations. This worksheet has 14 problems to solve.
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Lesson Plan
Curated OER

Observing Buffers In Lakes, Ponds And Streams

For Teachers 9th - 12th
Young scholars observe the effects of limestone on the acidity of water. Some areas of the nation have a lot of limestone in lake bottoms and in soil, which helps neutralize the effects of acid rain. Students see this effect first hand.
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Lesson Plan
NOAA

Off Base

For Teachers 9th - 12th Standards
How does carbon dioxide affect the world's oceans? The final installment in a series of six lessons has pupils research ocean acidification, then conduct an experiment to witness the delicate balance that exists in our seas. Materials...

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