In Colleen's simulation, the cardboard symbolizes the areas that remain black on the X-ray. The cardboard blocks the sand (which represents X-ray radiation), creating an outline similar to how certain areas of the body block X-rays and appear as dark spots on an X-ray image.
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)
Responses
the areas that remain black on the X-ray
the areas that remain black on the X-ray
the bones that look white in an X-ray
the bones that look white in an X-ray
the person being scanned with X-rays
the person being scanned with X-rays
the veins that look white in an X-ray
the veins that look white in an X-ray
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