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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.
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Carbon Dioxide Can Make a Solution Acidic
Can your breath change the acidity in a liquid? A instructional activity begins with a demonstration that proves it can. Then scholars perform an experiment to determine if other gases can change the pH of liquids. Finally, they research...
6th - 8th Science CCSS: Designed
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...
7th - 10th Science
Investigating the Response of Worms to Soil Improvers
The worms crawl in, the worms crawl out, but do they care what soil is all about? Find out in an easy and fun controlled experiment. Have your young biologists hypothesize, test, and draw conclusions about which type of soil worms...
6th - 12th Science