BG549807358 This model would be more than suitable. x1200 (if true) is just silly magnification -- that's the sort of mag. you would look for if you were interested in observing blood cells etc. For the purposes you have outlined, and the fact that your child is only 7 y.o. this is going to do more than they require. On a side note, keep the box. You can turn the monitor sideways (inline with the stand), roll it down to its lowest position and fit it neatly and safely in there ;o) Also, I would stick a piece of black card or foam to the base to provide a bit of contrast against your samples. Hope that helps.