I'm have that too! I'm also in year eight and top set, it really depends on which level it's on. It's when the acids in the stomach react with the alkali's in the food, turning it into water .. I think...
Well I am in yr 7 and I have the journey of a cheese sandwich hwk. I am really stuck on this and the only answer is that the BigIdea of Prticles is the reaction between an acid and an alkali.
Oh my god I have the journey of a cheese sandwich too, this is sooooooooooo hard I'm in year 8 and am in top set but even I am stuck!
No idea I'm trying to answer the same question for home work I'm in yr 8
Lol I'm in yr 8 too still looking for the journey of a cheese sand which project lol