This printable crossword puzzle on the topic of Elements & Periodic Table has 20 clues. Answers range from 6 to 18 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
O2
CuO
Cu
CuSO4
CuS
CuCO3
FeSO4
Fe(NO3)2
N2
H2SO4
CO
CO2
NO2
HCl
KNO3
K2CO3
Mg
AgF
Ca(OH)2
CaCO3