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Guide Questions: 1. Which heats up faster, water or soil? 2. What happens to the temperatures of water and soil after heating? 3. Which cools faster, water or soil? 4. If both substances received the same amount of heat energy, why were ihere differences in their heating rates? 5. Why are there differences between the cooling rates of sand and water? 6. Based on the data, explain how does the presence of the body of water like ocean affects the climate of the place?
2)The evaporation of water from the soil requires a large amount of energy. Soil water utilises the energy from solar radiation to evaporate thereby rendering it unavailable for heating up of the soil. Thus the greater the rate of evaporation, the more a soil is cooled and its temperature decreases.
3)Soil cools faster because it absorbs smaller amount of heat compared to water, the reason,why it absorbs lesser is space between particles of soil is smaler than tbe space between water molecules, heat occupies the spaces between molecules of matter.
4)When two objects that are at different temperatures come into contact... heat always transfers from the object with the higher temperature to the object with the lower temp. ... particles collide and thermal energy is transferred from the higher-temperature substance to the lower-temperature substance.
5)Sand cools off faster than water because sand is a solid. ... Water heats up slower and cools off slower than sand.Sand heats up faster and cools off faster than water.
6)Large bodies of water, such as oceans, seas and large lakes, can affect the climate of an area. Water heats and cools more slowly than landmasses. Therefore, the coastal regions will stay cooler in summer and warmer in winter, thuscreating a more moderate climate with a narrower temperature range.
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