We're curious how this process happens, because we know enough about matter and energy now in 6th grade, that if the two new cells came from the other cell, and they're the same size, that something had to have gotten into the cell in order for it to become bigger. But how exactly does that happen? And where does what goes inside the cell come from? The blood carries stuff...is that it? We know the blood carries food particles! Do cells eat? They don't have mouths--wait, or do they?
And aren't there single-celled organisms, too? Like bacteria? We've heard a lot about bacteria and viruses over the last year. Maybe we can investigate them to help us how new cells are made in the healing process!