comparison of effects between natural fertiliser (fish innards or leaves or teabags or (if you’re brave enough) pee.) and chemical fertiliser . should be pretty easy.

extracting chitin and chitosan from dead prawn shells through proteinisation (the smell is funky!)

adding human hair into bricks to make them (bricks) stronger

study the contents of boric acid (preservative which is harmful. it’s banned but some people still use it) in noodles.

begin each day by spraying the different pots with the same planet a different acid.

See which one grows the most.

at the end make a concluison on how acids effect planet growth.

How about make a volcano model?

go to:

www.scienceprojects.com