Your feet are burned by hot sand due to its low specific heat, allowing it to heat up quickly. In contrast, water has a high specific heat, enabling it to remain cool even in sunlight. This difference in thermal properties results in varied temperatures on the beach. ;
The primary reason your feet are burned by sand but cooled by ocean water is due to water's high specific heat, which allows it to maintain a cooler temperature. Sand, having low specific heat, heats up quickly under sunlight. Thus, water feels refreshing compared to hot sand.
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