science_fair_project_and_research | ![]() |
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10-picture_of_ro... | 11-scrubbing_wit... | 13-scrubbing_wit... | 14-scrubbing_wit... |
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16-scrubbing_wit... | 18-picture_of_ro... | 19-trail_2_final... | 20-final_trail-s... |
12-scrubbing_with_toothbrush_applying_bleach-no_effect-1080p.mp4 - (150 MB)
15-scrubbing_with_toothbrush_applying_vinegar-success-hand_getting_very_tired_scrubbing-1080p.mp4 - (56 MB)
17-scrubbing_with_toothbrush_applying_Goof_Off-success-1080p.mp4 - (61 MB)