It's also really damned hard to come up with an interesting, novel question, that is testable, with resources available to the average school child, in a reasonable amount of time.
Allowing engineering opens up the workable space by quite a bit.
My brother and I, for example, did an experiment where we tested pH of various water bodies around us. The hypothesis was based off of local drainage patterns.
anon291|12 days ago
My brother and I, for example, did an experiment where we tested pH of various water bodies around us. The hypothesis was based off of local drainage patterns.
Not a new question... Still scientific.