You will find out things like...How you can make a friend feel like he or she has a thired hand, or how you can extract DNA from a onion.
How pigments from vegables make dye.
How you can make paper out of lint from a cloths dryer.
What happens when you grow yeast in dandruff shampoo?
There is so much more to learn.
I would say 2ed -6th grade!