You will need
  • Copper sulphate
  • Ammonia
  • Calcium nitrate, or calcium nitrate
  • Tubes
Does copper sulphate (you can buy at the hardware store) and mixed in a test tube with ammonia (sold at the pharmacy, can be taken from the home kit) to the slightly bluish hue while falls a precipitate of the hydroxide of copper.

CuSO4+2NH4OH => Cu(OH)2+(NH4)2SO4
The formulas are given in a simplified form, for ease of perception and adjustment.
The next moment is the direct production of ammonium nitrate. The resulting ammonium sulfate ((NH4)2SO4) is mixed with the calcium nitrate (which is also sold in hardware stores), we obtain a precipitate of calcium sulfate. Next, drain the solution out of the vial, which contains ammonium nitrate.

(NH4)2SO4+Ca(NO3)2 => 2NH4NO3+CaSO4
Ammonium nitrate in the form of crystals