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This lesson gives full instructions for making cabbage juice indicator, a procedure sheet for learners to record observations as they use the indicator to test materials, and extension activities to d

$1 - $5 per group Ages 6 - 14 30 to 45 minutes
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In 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).

$5 - $10 per group Ages 8 - adult Under 5 minutes