trust me m8, its best to make ur own sheets.
Dont take too long.
Just put them down and then rewrite them every now and then.
I just put things down like: cracking, dehydration, fermentation, batteries, formation of transuranics, acid rain production, amphotericism, esterification, precipitations, formation of ozone and its breakdown by CFCs, conjugates.
And then the option stuff (shipwrecks): corrosion processes, electrolysis, corrosion protection (sac anodes etc.), electrolytic cleaning and deep sea corrosion.