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Worksheet
Curated OER

Acid-Base Indicators

For Students 9th - 11th
The first two pages provide a chart to complete with results of a lab test using different solutions and indicators. The data analysis questions will help your students understand the concentrations of the solutions and how they affect...
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Lesson Plan
LABScI

Acids and Bases: Cabbage Juice pH Indicator

For Students 9th - 12th Standards
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...
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Lesson Plan
Curated OER

Acids, Bases, and Indicators

For Teachers 7th - 10th
Chemistry or physical science fledglings get comfortable identifying acids and bases with a variety of pH indicators. They discover that different indicator solutions have different ranges, practice testing soil acidity, and use antacids...
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Worksheet
Curated OER

pH Curves and Indicators

For Students 9th - 12th
Glimpse how pH changes during an acid-base titration by examining graphs.  It contains not only graphs of pH changes, but also a chart summarizing what indicator to choose for different changes. This is not truly a worksheet, but an...
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Interactive
Royal Society of Chemistry

Indicators

For Students 6th - 12th
How do chemists know what indicator solution is the perfect match for the acid or base they're studying? Discover a rainbow of indicator-related properties with an Internet resource. Individuals relate the indicator solution to its...
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Lesson Plan
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American Chemical Society

pH and Color Change

For Teachers 6th - 8th Standards
Did you know strong bases can feel slippery and slimy? Lesson allows scholars to practice using the pH scale to identify acids and bases and their strengths. By changing the concentration of an acid and a base, they create the entire...
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Lesson Plan
Curated OER

Cool Chemistry- DIY pH Indicator

For Teachers 8th - 12th
Students study the differences between an acid and a base.  In this pH instructional activity students view a demonstration then test chemicals in groups.
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Lesson Plan
Curated OER

Making A Natural pH Indicator

For Teachers 5th - 12th
Students make their own pH indicator from red cabbage. Red cabbage contains a chemical that turns from its natural deep purple color to red in acids and blue in bases. Students boil the cabbage to get the pH indicator.
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Lab Resource
Pingry School

Acid-Base Indicators

For Students 9th - 12th Standards
Acid-base indicators are an essential part of any chemistry classroom. Individuals explore the color-changing feature of the important indicators in a vibrant hands-on activity. Using serial dilution, learners create solutions ranging...
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Activity
Discovery Education

By All Indications

For Teachers 6th - 8th Standards
How do people determine if something is acidic or basic? Learners make their own acid-base indicators using red cabbage and then determine the acidity and alkalinity of different substances. First, they test substances of known pH and...
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Worksheet
Curated OER

Acid-base Indicators

For Students 8th - 12th
There is a chart to complete with results of the titrations for the 14 different pH indicators.  There are also nine questions for data analysis, and then four problems requiring equations, molarities, and pH values.
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Lesson Plan
Curated OER

Indicator Sponge A Discrepant Event Demonstration

For Teachers 5th - 8th
Students explore the use of acid and base pH indicators. The teacher saturates an indicator sponge with congo red solution. Afterwards, the sponge is placed in a blue base solution. Students observe that the blue sponge actually turns...
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Interactive
Royal Society of Chemistry

pH 2: Activity

For Students 6th - 12th
Pupils puzzled over pH? Incorporate an interactive resource that teaches through games! Chemistry scholars use reasoning to solve puzzles that focus on determining the pH based upon hydrogen ion concentration.
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Worksheet
Curated OER

Chapter 15 Review, Section 2: Acid-Base Titration and pH

For Students 9th - 12th
Keep it simple with this chemistry assignment. Learners examine an acid-base titration graph and answer four questions about the data. Then they will balance neutralization equations and calculate molarity for several specific solutions....
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Activity
1
1
Teach Engineering

Red Cabbage Chemistry

For Teachers 7th - 9th Standards
Using the natural pH indicator of red cabbage juice, groups determine the pH of different everyday liquids. As they work, pupils gain an understanding of pH that may help deal with contaminants in the water supply. 
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Lesson Plan
Curated OER

pH and Red Cabbage Juice

For Teachers 6th - 8th
Students review properties of materials and define what pH tells them about matter.  In this pH levels lesson, students determine whether materials are acids or bases using indicator substances.
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Interactive
Royal Society of Chemistry

pH 4: Activity

For Students 6th - 12th
Sometimes playing games in class isn't a bad thing. Science sleuths evaluate and calculate pH and pOH with an online resource. They then manipulate concentration information and relate it during a series of puzzles.
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Interactive
Royal Society of Chemistry

pH and pOH

For Students 6th - 12th
Feeling a little neutral about your pH and pOH teaching strategy? Perk it up with engaging puzzles! Young scientists relate ion concentration to pH and pOH, as well as the dissociation constant for water. The resource is available as an...
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Lesson Plan
Curated OER

Measuring pH

For Teachers 9th - 12th
Pupils perform an experiment which will illustrate how to measure the approximate pH of chemicals in water using a pH indicator. They understand that a pH indicator is a chemical that changes color when it comes in contact with acids or...
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Lesson Plan
Curated OER

Determining The pH Of Common Substances

For Teachers 9th - 12th
Learners use a pH indicator to measure the pH of some fruits, common beverages, and borax. Students discover how to differentiate between an object that is an acid or a base.
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Activity
1
1
NOAA

Why Should I Care?: Show How Increased Carbon Dioxide Makes the Ocean More Acidic

For Students 6th - 8th Standards
How does a change in pH affect the ocean ecosystem? Scholars explore the idea by making an acid-base indicator in part seven of the 10-installment Discover Your Changing World series. First, they explore impacts of carbon dioxide in...
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Worksheet
Curated OER

Acids, Alkalis and Indicators

For Students 6th - 12th
In this pH worksheet, students describe acids and alkalis. Students determine is substances are strongly acidic or alkaline. Students use the color of universal indicator paper to determine the pH of given substances. This worksheet has...
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Lesson Plan
Curated OER

Acids, Bases and Indicators

For Teachers 9th - 12th
Students investigate the pH of various solutions with indicators. In this acids, bases and indicators lesson plan, students use a variety of indicators to test solutions for their pH. Students determine which indicators are the best to...
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Lesson Plan
Curated OER

The Difference Between Acids and Bases Using Different Indicators

For Teachers 7th - 8th
Students identify the differences between acids and bases. In this acids and bases lesson plan, students identify and distinguish between acids and bases. They use household products to test the ph levels. They test the ph levels by...

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