Colleen replicates an X-ray machine by covering an open shoebox with a screen and positioning a square cardboard piece in the center. She uses sand to simulate X-ray radiation, sprinkling it over the screen. Upon removing the screen, she observes an outline of the square cardboard. What does the cardboard symbolize in her simulation?(1 point)

Question

Responses

the areas that remain black on the X-ray
the areas that remain black on the X-ray

the veins that look white in an X-ray
the veins that look white in an X-ray

the person being scanned with X-rays
the person being scanned with X-rays

the bones that look white in an X-ray

Answer 1

In Colleen's simulation of the X-ray machine, the square cardboard piece symbolizes the bones that look white in an X-ray. This is because the cardboard blocks the sand (representing the X-ray radiation) from reaching the screen, similar to how bones block X-rays and appear white on an actual X-ray image.