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General purpose pH test strips for use with a variety of solutions
perfect for final on-stage changes
The dolls represent a variety of ages
Includes stay for holding doors in open position
Levers Kit (Each) KD522201 General purpose pH test stripsKit includes: (5) Levers, (4) Fulcrum Triangles, (Plethora) of Counter Masses Kit is used to outfit a classroom of 5 groups to study levers, center of mass, balance, equilibrium Instructions not included Levers are 23. 75 inches long Graduations do not correlate to English or metric units of measure in order to force empirical thinking about balance A great low cost kit to teach students about simple machines, balance, equilibrium and center of mass.
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