Which of the following is not an example of a scientific model?
a.
a diagram of a cell
b.
a data table
c.
a three-dimensional representation of an atom
d.
a graph showing the change in temperature and volume over time for hydrogen gas

Option (b) is the correct answer.

Explanation:

A scientific model helps to display and explain an image, ides, object or process which cannot be imagined or experienced directly.

For example, a flow chart showing water cycle will help to experience or visualize the whole process of water cycling.

Therefore, diagram of a cell, three-dimensional representation of an atom and  a graph showing the change in temperature and volume over time for hydrogen gas are all representing scientific model.

Whereas data table does not tell anything about the scientific process so it is not an example of scientific model.