Question

sarahs group designed this oven and eventually melted the chocolate, but it took a very long time. sarah suggested a design modification: she thought they should cover the bottom of the box with black paper and leave the aluminum foil up above. is sarah correct? why or why not? a no. the top and bottom should be covered with aluminum foil to reflect the rays of the sun. b no. the bottom and sides of the box should be covered with rolled up newspapers to help insulate the box. c yes. a black bottom will absorb more heat energy when the sunlight is reflected into the box by the foil. d not completely. sarah is correct about the bottom. it should be black. but the rest of the box should be black to absorb heat energy.

Explanation:

Black surfaces are good at absorbing heat energy. Aluminum foil can reflect sunlight into the box. Covering the bottom with black paper while keeping the aluminum - foil above will allow the black bottom to absorb the heat energy from the sunlight reflected by the foil, which helps in melting the chocolate faster.

Answer:

C. Yes. A black bottom will absorb more heat energy when the sunlight is reflected into the box by the foil.