In a model of paper chromatography that uses different colored dots for molecules, what do the dots most likely represent?

The different colors of ink that were originally mixed together.

The individual atoms that make up the paper.

Different types of molecules within the mixture.

The speed at which the water is moving.

A model of chromatography helps explain events at the "microscopic scale." This scale refers to things that are:

extremely far away, like stars and galaxies.

too small to be seen with the naked eye.

happening over very long periods of time.

purely abstract and theoretical in nature.

Real molecules have complex 3D structures, not simple dot shapes.

Real molecules are actually much larger than the dots in the diagram.

The diagram is useless because it doesn't show the colors accurately.

Models are only used by students, not by professional scientists.

To provide a tool for understanding things that are difficult or impossible to observe directly.

To create a perfect and exact replica of an object or process found in nature.

To prove with absolute certainty that a scientific hypothesis is correct.

To replace the need for conducting hands-on experiments in the laboratory.

It is the exact same size as the real solar system.

It proves that there is life on other planets.

It makes a very large and complex system easier to visualize and study.

It allows the scientist to physically travel to each of the planets.