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the motion of particles in different states is difficult to observe. a student used computer software to represent the movement of particles in the solid state. which type of scientific model did the student use?

a simulation because it imitates an intrinsic process in the molecule.
a simulation because it visualize the orientation of atoms in the molecule.
a 3-dimensional model because it visualize the orientation of atoms in the molecule.
a 3-dimensional model because it imitates an intrinsic process in the molecule.