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Universal Indicator Rainbow Trout

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In this activity, learners cut out a fish and then "paint" it using universal indicator and acids and bases.
$1 - $5 per student Ages 4 - 14 10 to 30 minutes

Universal Indicator Rainbow Trout

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In this activity on page 2 of the PDF, learners discover how color changes can help scientists distinguish between acids and bases.
$10 - $20 per student Ages 6 - 11 10 to 30 minutes