identifying direction of heat flow
indicate the direction of heat flow in each scenario.
scenario a:
scenario b:
scenario c:
scenario d:

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Accepted Answer

# Brief Explanations:
Heat flows from a hotter object to a colder object. In Scenario A, skin ($37^{\circ}C$) is hotter than lotion ($27^{\circ}C$), so heat flows from skin to lotion. In Scenario B, lasagna ($170^{\circ}C$) is hotter than plate ($20^{\circ}C$), so heat flows from lasagna to plate. In Scenario C, lava ($950^{\circ}C$) is hotter than ocean water ($25^{\circ}C$), so heat flows from lava to ocean water. In Scenario D, sidewalk ($80^{\circ}C$) is hotter than eggs ($2^{\circ}C$), so heat flows from sidewalk to eggs.

# Answer:
Scenario A: Skin to Lotion
Scenario B: Lasagna to Plate
Scenario C: Lava to Ocean water
Scenario D: Sidewalk to Eggs

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