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Forwards and Backwards
Oregon Museum of Science and IndustryAdd to list DetailsIn this activity, learners explore acids and bases by preparing six solutions that combine vinegar and ammonia, ranging from acid (all vinegar) to base (all ammonia). They add an indicator to each...
Natural Buffers
Oregon Museum of Science and IndustryAdd to list DetailsLearners use a universal indicator to test the amount of sodium hydroxide needed to change the pH of plain water compared with the amount needed to change the pH of gelatin. Learners discover that...
Finding Colors
SciencenterAdd to list DetailsIn this chemistry challenge, learners combine acids and bases in a universal indicator to create five different colors. Using vinegar, washing soda, and Bogen universal indicator, the goal is to...
Universal Indicator Rainbow Trout
American Chemical SocietyAdd to list DetailsIn this activity, learners cut out a fish and then "paint" it using universal indicator and acids and bases. The initial coat of indicator changes the color of the paper (it will turn a...
Universal Indicator Rainbow Trout
American Chemical SocietyAdd to list DetailsIn this activity on page 2 of the PDF, learners discover how color changes can help scientists distinguish between acids and bases. Learners create colorful rainbow trout artwork using universal...
Mystery Powders
Oregon Museum of Science and IndustryAdd to list DetailsLearners are given mysterious white powders and have to determine their identity with chemical tests. This resource includes background information about how to identify detergent, citric acid,...