Louisa put a bowl of water and a bowl of sand in the sun. she put a thermometer in each bowl. then she recorded the temperature at the start and after 30 minutes. after 30 minutes, the sand had heated more than the water. louisa’s experiment proved that a) sunlight does pass through water. b) sunlight heats liquids more than solids. c) different materials heat up at different rates. d) different materials absorb the same amount of heat.