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They can be used to create most 2D shapes and then can be split or divided to represent fractions or new shapes
Includes 3um replaceable hydrophobic filter
The blue enamel marking spot gives an excellent surface for pencil notations
Premium Quality: Color Filter is made of high-grade construction all the way through
Conductivity Apparatus Head Dissection Model They can be used toStrips of copper, brass, steel and aluminum mounted on a wooden ring and meeting in the center. Gentle heating at the center melts wax placed in the hollows at the end of each strip. Rates of conductivity in the different metals can be compared by the difference in time taken for each cup of wax to melt. Designed for use in professional laboratories but is an ideal choice for science classrooms and household use. If you need custom order with
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