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Toothpaste Evaluation Kit
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15068
Study of the chemical composition of toothpastes. Students evaluate several toothpastes for percent of solids, pH, foam formation, abrasive action, specific substances. They use this data to make judgments about their effectiveness. Materials for 12 pairs of students. Grades 7-12.
$36 Each
$120.00 Each
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Water Test Kit
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09415
Ideal field test kit for performing 4 important experiments on water pollution. Test water samples for dissolved oxygen content, chlorides, phosphates, and water hardness. This kit provides all the apparatus and materials necessary for performing each test several times. Comes complete with instruction booklet.
$13.19 Each
$43.95 Each
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Main menu
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- ANSI Class 2 Products (15)
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- Helmets (2)
- Jackets (4)
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- Women's Apparel (4)
-
- Aluminum Traffic Signs (Regular) (57)
- Aluminum Traffic Signs (Reflective) (50)
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- Crosswalk Signs (10)
- Floor & Sidewalk Signs (60)
- Impact Recovery System Signs (1)
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- Paddle & Wand Signs (8)
- Reversible Signs (9)
- School Bus Safety Signs (15)
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-
- Astronomy (6)
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- Chemistry (78)
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- K'Nex Technology Kits (1)
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- Magnetism (27)
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