Stereo or
dissecting microscopes allow you to view nature up close and in detail. Even a simple
20x kids microscope can reveal the stigma of a flower or plant. When viewing items found in nature, a microscope with 10x - 40x magnification is generally best.

This leaf image was captured at 10x magnification,

The same leaf, at 30x magnification.
If you are looking for a good children's microscope that connects to the computer so you can capture and save your nature images, Microscope World recommends the
DS2 digital student microscope.