I bought a microscope off amazon for around $50 and also a set of slides. My 5 year old loves it. It has 3 magnification settings and that seems to work fine.

I bought a microscope off amazon for around $50 and also a set of slides. My 5 year old loves it. It has 3 magnification settings and that seems to work fine. We found some squash bug eggs in the garden and put these on a slide, it was a good activity.