Curated OER
pH Pre-Lab: Acids and Bases
In this chemistry lab, students determine whether or not their saliva is acidic, basic, or neutral. After completing their test, they answer 6 analysis questions.
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Acids and Bases-pH Experiment
In this chemistry lab learning exercise, student use pH paper to test the pH of common household items. After collecting and charting their data, they complete 12 follow-up questions.
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Determining Acids and Bases
Students use purple cabbage indicator to test five know substances for acidic/alkaline balance. They discuss the safety precautions required both inside and outside a lab in handling acids and bases.
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Acid-Base Indicator Paper
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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Soil Samples
Students complete experiments in which they test the amount of humus in soil samples. They record their data and discuss the results. They write a story about soils to end the lesson.
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Observing Buffers In Lakes, Ponds And Streams
Students 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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Soil Sample Lab
Students test the pH of soil samples they collected from the field trip. In this chemistry lesson, students differentiate acids and bases. They write a lab report about the experiment.
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Coca-Cola Ph Lab
Students compare the pH of Coca-Cola from the USA to the pH of Coca-Cola from Mexico. They also test and compare the pH of other liquids.
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Eco-enrichers
Students discover the importance of plant and animal components within soil. In this soil instructional activity, students test the quality of soil. Students then conduct an experiment adding different components to bags of soil to see...
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Brine Shrimp And Ph Levels
Third graders investigate the different ph levels found in water that is tested using simple measurements. The water samples are taken from a local body of water. The ph levels are used to help indicate areas where shrimp can thrive in...
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Biocomplexity Lab Activity: Measuring Water pH
Students test unknown solutions for pH levels to determine which organism can live in each environment. They name three substances that they think are acids. Students determine a solution is an acid or base. They define the term pH.
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Chemistry: pH Probe
Students 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. Finally,...
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Acid and Base Activities
Students experiment with acids and bases. In this elementary level chemistry lesson, students perform activities for testing acids and bases. They use universal indicator paper to determine which substances are acidic and which are...
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Raindrops Keep Burning On My head
Students investigate the effects and causes of acid rain. They test pH of household items to familiarize themselves with pH scale and compare that information with acid rain solutions. They investigate impact of acid rain via internet...
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Natural Indicators: How Do They Work?
Young scholars describe characteristics and common uses of acids and bases. They describe the role of natural indicators in the chemistry of acids and bases after testing and making observations on a variety of plant extracts. Students...
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Cell Energy-Colorful Respiration
Students examine the acid-base indicator, bromthymol blue (BTB), and what happens to it when you blow air into it or add plants and snails. Through an experiment, they test three different setups of BTB and record the color changes that...
Virginia Department of Education
The Effects of Heat and Acid on the Enzyme Catalase
How quickly do enzymatic reactions occur? Assist the class as they examine heat and pH change to determine the rate of chemical reactions using catalase as an enzyme. Watch them "glow" with excitement!
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Water Quality Monitoring
Pupils comprehend the four parameters of water quality. They perform tests for salinity, dissolved oxygen, pH and clarity or turbidity. Students comprehend why scientists and environmental managers monitor water uality and aquatic...
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Solubility and Chemical Changes in Groundwater
Middle schoolers test pH of water before and after it travels through different substrates (igneous pebbles and limestone) to detemine how soluble materials can affect groundwater. They answer questions such as: What happended to the pH...
Curated OER
What Is In The Cup?
Students investigate the mixtures of solutions. They utilize cups filled with bases and acids. Students test and determine the pH of each cup. The multiple cups are compared to each other in order to chart acids and bases according to pH...
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Measuring Aquatic pH
Students apply the scientific method and safety rules to aquatic pH. They test unknown solutions for pH levels.
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It's All in the Air
Learners examine air quality. They test the air for visible pollutants by observing jars for one week and compare and contrast the data they collect. After comparing and contrasting the data, they graph the results of pollution...
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.
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Polluted Rain
Students identify and analyze how acid rain can affect the environment. They then explain how air, water, and pollution interact and conduct pH tests to find acidity levels in water. Finally, students become "Pollution Watch Reporters"...