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- Grade Range
- 4th
- Rating
Students make cabbage water to test color change when acids and bases are added to it. They observe the colors of the pH scale and associate certain colored litmus paper with acids or bases. Full Review »
- Grade Range
- 3rd - 5th
- Rating
Students review the concept of sorting objects by various physical attributes, then sort Lego blocks by size, color, shape, number of bumps, etc. They classify household liquids as bases or acids by using cabbage-juice paper and then litmus paper. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students learn basic properties of soap. They perform and demonstrate various cleaning different bar soaps. They also perform tests using indicators such as blue litmus paper, red litmus paper, and pH paper. Full Review »
- Grade Range
- 1st - 8th
- Rating
Students classify liquids as an acid, base or neutral. They use purple cabbage juice as an indicator to test several liquids in order to group them as acids, bases or neutrals. Full Review »
- Grade Range
- 7th - 8th
- Rating
Students experiment to determine the differences between acids and bases using litmus paper, pH paper and indicator solutions. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students measure a variety of common substances for their pH level. They use a measurement of old Litmus paper and the history of pH level determination. Students rank order the substance and make comparison reports on the intensity of acidity or alkalinity. Full Review »
- Grade Range
- 6th - 12th
- Rating
Students investigate acids, bases,and pH. They test the acidity and basicity of various household items using litmus paper. Using their results, they rank the substances according to pH and identify the contributing chemical on the label. Full Review »
- Grade Range
- 6th - 7th
- Rating
Students investigate the acidity and alkalinity of common household products in an experiment. They use red cabbage juice and litmus paper to show the difference between strong acids and bases as they work with vinegar, dish washing liquid, baking soda, and a number of other substances. After the experiment, they analyze the data that they collect. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students investigate the strength of acids and bases experimentally. They answer the question, "How can pH be used to determine possible product tampering?" by testing acids and bases with litmus paper. Full Review »
- Grade Range
- 6th - 11th
- Rating
Students determine the pH of different household products. They determine whether each substance is an acid or a base with litmus paper. In addition, they obtain a more precise measurement using pH indicator strips Full Review »
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