Kit, Stem Investigations: Design A Biodegradable Plastic, Includes: 25 mL Glycerin, 75 mL Vinegar, 175 g Gelatin, 125 g Starch, 45 Petri dishes, 30 Pipettes, contains enough materials for 15 groups. Teacher's Manual and Student Study Guide copy masters are included
Pulleys Plastic, Double-Long, Double Plastic Pulley In Tandem, On A Steel Frame, With Hooks At Each End Carrying Two Plastic Pulleys With Diameters Of 38 And 50 mm, Inner Gap Of Pulley Measures 3 mm, Overall Length Is 11.4 Cm. Capable Of Holding Over 30 Lbs Of Weight.
Density Set - Black Derlin, Set Of 12 Derlin Cylindrical Bars Of Different Length But The Same Diameter, Students Learn That The Density Of A Substance Is Constanteven As Its Mass And Volume Change. Comes In An Attractive Wooden Holder.
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