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- Grade Range
- 7th
- Rating
Students identify and define the concepts of acid, base, indicator and neutralization. They identify, classify and observe common household substances as an acid, a base or neither. They record all observations and findings in a data table. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students devise a scientific investigation to detect acids and bases in common materials. Full Review »
- Grade Range
- 7th - 8th
- Rating
Students examine what acid precipitation is and how it is produced and become acquainted with the effects of acid precipitation on plants and animals in the Northern Forest. Students participate in three activities in which they discover common substances that are acidic, determine the approximate pH of common substances, and make acid rain. Full Review »
- Grade Range
- 9th - 10th
- Rating
Students conduct experiments and collect data to determine physical and chemical characteristics of acids and bases. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students use CBL technology to monitor the titration of a weak base using a known solution of hydrochloric acid. They use graphic analysis of a graph of the pH versus time to determine the endpoint and calculate the unknown concentration of the base. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students explore acids and bases. They titrate an acid of unknown concentration with a base of known concentration and use the data collected to calculate the concentration of the acid. Full Review »
- Grade Range
- 11th - 12th
- Rating
Students conduct an experiment in which they react sodium bicarbonate with hydrochloric acid to determine the molar ration between the two reactants. Students must write correct formula and a balanced chemical equation and explain how it relates to their hypothesis. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students prepare a test solution whose color changes when an acid or a base is added. They determine whether various household substances are acids or bases and look for patterns in the results. Students determine how their test solution compares to commerical acid-bases testers; and search for other test solutions. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students observe chemical reactions using post-1982 pennies. They observe the reaction of an acid with zinc but not copper under the same conditions over a two week period. Full Review »
- Grade Range
- 11th - 12th
- Rating
Students use the scientific method to describe a hypothesis for the reaction of sodium bicarbonite with hydrochloric acid. They write a procedure using sodium bicarbonite with hydrochloric acid reaction to fill a plastic baggie with gas. Students carry out the experiement they have written, they evaluate their experimental results. Full Review »
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