How do models provide a provide a practical solution for some scientific research

The scientific models are the simplified visual representations of the complex processes or systems of the natural world.

The models serve many important purposes in scientific investigations as they are used by the researchers to test the predicted hypothesis proposed and to explain the results to another group of peoples which could be a layman.

The 3 D structures of molecules are represented by the globular models and stick key models which even represents the bonds between atoms.

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the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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