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Cruciferous vegetables (named for their tiny cross-forming flower petals) belong to the cabbage family. The family portrait includes everything from arugula to watercresswith cauliflower, collards, kale, kohlrabi, mustard greens, radishes, rutabaga, Swiss chard and turnips in between.
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Cabbage juice is placed in a large flask. Vinegar is added to the point of color change. Aqueous ammonia is then added to the point of color change. Vinegar is then added again to show the reversibility of the color change.
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Red Cabbage Chemistry Science Strand:_______________________________________________________ Objective: Natural substances can be used as indicators of acid and bases. Essential Questions: What are indicators? Can natural substances be use as indicators of acids and bases?
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Interest in hot and spicy food originates in my Louisiana heritage. Growing up in central LA, I never was in a café or restaurant that didn't have a bottle of Tabasco® or other hot sauce on every table.
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