Kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. she placed them on a window sill in the sun for an hour and then measured the warmth of the air in each box. which of the following best describes the purpose of the experiment?
a. to relate the size of the box of the warmth of air within the box
b. to relate the type of box material to the warmth of air within the box
c. to relate the amount of a time a box is exposed to sunlight to the warmth of air within the box
d. to relate the type of box material to the mass of the box
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