A student heats 100 g of aluminum to 60°C. He places it in 100 g of water at 20°C. Over time, what will most likely happen? The water's temperature will increase slightly, and the metal's temperature will decrease a lot. The water's temperature will increase a lot, and the metal's temperature will decrease slightly. The water's temperature will decrease slightly, and the metal's temperature will increase a lot. The water's temperature will increase by about the same amount as the metal's temperature decreases.