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Berry pH Paper – Sick Science! #048
626
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13 years ago
Dry Ice Bubbling Acid – Sick Science! #006
722
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14 years ago
Red Cabbage Chemistry – Cool Science Experiment
733
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14 years ago
Goldenrod Color-Changing Paper – Halloween Science
627
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16 years ago
Valentines Day Science Fun
592
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16 years ago
