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Interactive
Curated OER

pH Lab

For Teachers 10th - 12th
In this pH worksheet, students experiment with dilutions of acidic solutions to test for the pH using cabbage as an indicator. They then test a variety of substances for pH. On day two of the lab, they test conductivity of solutions and...
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Lesson Plan
Curated OER

Indicators For Acids and Bases

For Teachers 4th
Fourth graders compare the color of cabbage water when acids and bases are mixed in. In this acids and bases lesson plan, 4th graders use cabbage water and mix in acids and bases that the teacher prepares before hand. They observe the...
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Lesson Plan
Curated OER

RHS Campaign for School Indicator

For Teachers 4th - 9th
Students study Ph and how acids and bases can affect it.  In this indicators lesson students divide into groups and complete a lab activity to investigate what happens when they add indicators. 
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Assessment
Curated OER

2002 U.S. National Chemistry Olympiad National Exam - Part I

For Students 9th - 12th
As to be expected from the American Chemical Society Olympiad Examinations Task Force, this 60-question test tops the charts in terms of excellence. It consists entirely of multiple choice questions designed to assess a year's worth of...
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Worksheet
Curated OER

Soil Porosity, Moisture Content, pH, and Density

For Students 9th - 12th
This lab activity does not have to be done with AP environmental scientists. It can also be done with middle to high school earth scientists. The procedures aren't complex. Learners determine the density of dry and wet sand in order to...
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Lesson Plan
Curated OER

Changing Planet: Ocean Acidification - the Chemistry is Less than Basic!

For Teachers 7th - 10th
A video and laboratory investigation are highlights to this lesson plan on acidification of ocean water due to increased atmospheric carbon dioxide. Using bromothymol blue (BTB) as an indicator, pupils analyze the amount of carbon...
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Lesson Plan
Space Awareness

Transforming Water Into Acid ... And Back

For Teachers 5th - 11th
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...
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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. Students test the pH level of many water samples.
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Lesson Plan
Curated OER

Acids and Bases: Cabbage Juice Indicator

For Teachers 5th
Fifth graders perform tests to identify acids and bases.  In this chemistry lesson, 5th graders identify common household substances as acids or bases using cabbage juice indicator strips.
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Activity
Herff Jones Education

Acids, Bases, and Indicators—Colorful Chemistry

For Teachers 7th - 12th
Lead the class in a colorful exploration of acids and bases as they learn to differentiate between the two. They identify common items considered acidic and basic, then explore their strengths and weaknesses. They titer solutions and...
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Lesson Plan
Curated OER

An Introduction to Acids and Bases

For Teachers 7th - 10th
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....
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Lesson Plan
California Academy of Science

Coral and Chemistry

For Teachers 6th - 12th
Using cabbage juice as a pH indicator, future scientists explore the effect of increasing carbon dioxide on the pH of the ocean and relate it to the health of coral reefs. Ideal for an earth or environmental sciences course, this lesson...
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Lesson Plan
Curated OER

Investigating the Change

For Teachers 5th - 8th
Sugar crystal growth is observed as an example of physical change and cabbage juice pH indicator is used to demonstrate chemical change. The crystal growth is tracked over five days. The cabbage juice experiment is involved and can also...
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Lesson Plan
American Chemical Society

Powder Particulars

For Teachers 3rd - 8th
By both demonstration and hands-on investigation, physical science fanatics come to know that some materials react when they come together. Adding vinegar to both baking soda and to baking powder, the difference between the two is clear....
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Lesson Plan
Curated OER

Determining pH

For Teachers 8th
Eighth graders explain the difference between acids, bases and neutral solutions. In this chemistry lesson, 8th graders describe the properties of each. They determine the pH of an unknown solution using the indicator paper and pH scale.
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Lesson Plan
Cornell University

Predicting Chemical Reactions

For Teachers 9th - 12th
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...
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Lesson Plan
Curated OER

Acid (and Base) Rainbows

For Teachers 4th - 6th
Students are introduced to the differences between acids and bases and how to use indicators, such as pH paper and red cabbage juice, to distinguish between them. They make predictions that can be answered through scientific...
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Worksheet
Curated OER

Acids And Bases

For Students 6th - 9th
In this acid and base chemistry worksheet, students solve 25 clues in a crossword puzzle based on the pH of common household solutions and common names of chemical compounds.
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Unit Plan
Columbus City Schools

ABC: Acid Base Chemistry

For Teachers 7th Standards
Bubble, bubble, boil and trouble! What causes common substances like baking soda and vinegar to react the way they do? Welcome your junior chemists to the wonders of acid-base chemistry using a comprehensive and fun...
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Lesson Plan
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Baylor College

Fuel for Living Things

For Teachers 3rd - 5th
During a three-part lesson, learners make a cabbage juice pH indicator and use it to analyze the waste products of yeast after feeding them with sugar. The intent is to demonstrate how living organisms produce carbon dioxide, which is...
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Lesson Plan
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American Chemical Society

Chemical Reactions and Color Change

For Teachers 5th
Colors are more than just a pretty effect. Learners explore what color change means in terms of chemical properties and reactions. They create a pH solution using cabbage leaves and observe the changes when acids and bases are added. 
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Lesson Plan
American Chemical Society

Neutralizing Acids and Bases

For Teachers 3rd - 8th
Now that your science class has experimented with pH indicator and identified acids and bases, they attempt to get the cabbage juice indicator back to its original color. This is done through neutralization of the acids and bases that...
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Lesson Plan
American Chemical Society

Color Changes with Acids and Bases

For Teachers 3rd - 8th
Getting back to the beginning of the unit, learners use reactions with red cabbage juice to determine if solutions are acidic, neutral, or basic. This is a straightforward and classic investigation, but what you will appreciate is the...
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Lesson Plan
Curated OER

Acid-Base Indicator Paper

For Teachers 6th - 8th
Middle schoolers are able to prepare and use pH indicators in paper form. They find out the color of the indicator paper plus test solution may change with time. Students use red cabbage to use for the indicator.

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