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Changing Planet: Ocean Acidification - the Chemistry is Less than Basic!
A video and laboratory investigation are highlights to this lesson on acidification of ocean water due to increased atmospheric carbon dioxide. Using bromothymol blue (BTB) as an indicator, pupils analyze the amount of carbon dioxide...
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Carbon Dioxide - Sources and Sinks
Where does all of the carbon dioxide come from that is supposedly leading to climate change? Earth science pupils test animal, plant, and fossil fuels as sources in this investigation. Using an indicator, BTB, they are able to detect the...
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2003 U.S. National Chemistry Olympiad Part III
In this chemistry Olympiad learning exercise, pupils are given 2 lab problems to work on. They must explain their experiment they would carry out, show their data and write their results and conclusions of the lab and the process.
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Chemical Changes Making Foam and Using Indicators
Students are able to observe chemcial and physical changes while producing a brilliant formation of foam. They are able to experience the use of an indicator in the reaction. Students record information based on their observations.
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Determination of Water Hardness
Young scholars investigate water hardness. In this water hardness lesson plan, students determine the water hardness in 4 samples of water after buffering each. By using titration and an indicator, young scholars can determine the amount...
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RHS Campaign for School Indicator
Students study Ph and how acids and bases can affect it. In this indicators lesson plan students divide into groups and complete a lab activity to investigate what happens when they add indicators.
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Making Soap
Students explore what chemical indicators are and use pH paper to determine if something is alkaline or basic. In this pH lesson students manufacture their own soap.
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Cool Chemistry- DIY pH Indicator
Learners 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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Acid(s)-Base(s) Detective
Students investigate acids, bases, indicators and universal indicators. In this acid and base lesson plan, students test 6 samples with litmus paper and determine if they are acids or bases. They separate out 7 samples using litmus paper...
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Investigating Buffers
Students investigate buffers and their behaviors when used with acids and bases. In this buffers lesson plan, students use a pH meter and create buffered acidic and basic solutions. To each of the buffered solutions students add strong...
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pH Lab
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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DNA Extraction
Students are able to extract and observe a visible amount of DNA from Escherichia coli cells. They discuss the properties of DNA. Students confirm the presence of DNA by a reaction with an indicator.
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Acidity of Soda Pop
Learners conduct an experiment to determine the acidity of three different brands of soda by adding a known volume of base until a pink color appears in the reaction vessel. They test fresh and flat soda, observe any differences, and...