Caution: Though Science Buddies has some interesting ideas, many don’t actually use measurement for the dependant variable or independent variable. This makes it VERY HARD to have a project that will score highly on the MYP rubrics, because it is more like an interesting exploration, and less like a controlled experiment. You can adapt these ideas so that the IV and DV are measurable in some cases, but not all.
Careful with plants – they take a long time to grow, may die during your experiment, and each one is slightly different even if they are the same type of plant!
Steve Spangler Science: Guide to a Successful Science Fair
Steve Spangler Science: Science Fair Tips