Laboratory Grade Copper (II) Carbonate Powder, 500g Subcategory_Botany Equipment The wavelength can be changed

The wavelength can be changed with the help of variation in frequency & stress generated using different weights on the one end of rope/thread

Used to compare two light sources by sliding them until both faces of a paraffin block appear equally lit

band pattern analysis

Materials for five demonstrations

Pith balls suspended both inside and outside a charged metal cylinder make visible proof that electrostatic charge resides only on the outer surface of a conductor

Laboratory Grade Copper (II) Carbonate Powder, 500g Subcategory_Botany Equipment The wavelength can be changedUsed in thermal decomposition demonstrations producing copper oxide and CO2, this 500g bottle of laboratory grade copper (II) carbonate powder also serves as a green pigment in ceramic glazes.