Question

1.3.2 test (cst): science and engineering
question 18 of 25
which model is a physical model?

a. a graph that uses analyzed data to show the spread of a disease
b. a bar graph that shows how many students buy lunch each day
c. a simulation of the history of life on earth
d. a plastic skeleton that shows all the bones of the body

Explanation:

A physical model is a tangible, three - dimensional representation of an object or system. Option A is a graph (a visual representation of data, not physical), Option B is a bar graph (also a data - based visual, not physical), Option C is a simulation (a computer - based or conceptual representation, not physical). Option D, a plastic skeleton, is a physical, three - dimensional model of the human skeletal system.

Answer:

D. A plastic skeleton that shows all the bones of the body