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Jumbo Heart Model

12896

A 2 1/2-times life-size jumbo heart model excellent for elementary science classes. Dissectible into 3 parts showing anterior, posterior and inferior views along with valve details usually found only on more expensive models. Mounted on a stand. Includes a keycard with 95 structures labeled. 11 3/4" X 8".

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$31.20 Each $104.00 Each

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Den-Test Kit

15070

Den-Test is a science experiment which allows students to cultivate bacterial growth from their own teeth. See the difference in bacteria growth development from the "before brushing" and "after brushing" samples. Used also to illustrate bacterial growth on dirty hands, desk tops, money, etc. Includes 24 sterile petri dishes, 48 sterile swabs, 2 bottles agar gel and instruction manual. Grades 5-10.
Den-Test is a science experiment which allows students to cultivate bacterial growth from their own teeth. See the difference in bacteria growth development from the "before brushing" and "after brushing" samples. Used also to illustrate bacterial growth on dirty hands, desk tops, money, etc. Includes 24 sterile petri dishes, 48 sterile swabs, 2 bottles agar gel and instruction manual. Grades 5-10.

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$30.75 Each $102.50 Each

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Giant Ear Model

12900

A great giant model of the ear which shows all major structures related to hearing and balance. Dissectible into 3 parts. Enlarged 4 times. 14" x 7" x 8 1/2".
A great giant model of the ear which shows all major structures related to hearing and balance. Dissectible into 3 parts. Enlarged 4 times. 14" x 7" x 8 1/2".

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$29.70 Each $99.00 Each

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Molymod 12-Layer Mini DNA, 24 H cm

15176

Molymod 12 Mini DNA Model can be unzipped to demonstrate the process of transcription and can be assembled on a stand. The color coded parts of the model represent nitrogen bases, sugar and phosphate compounds.

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$29.70 Each $99.00 Each

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