《什么力量使大气流动成风》一课,其中“炉灶生火”的实验可以简化,还可补充“海风和季风的成因”的模拟实验。 实验器材(每人一份):15cm×20cm纸一张、剪刀、浆糊、火柴、短蜡烛、蚊香。 制作方法:在纸下端剪去1cm×1cm一块,作为“炉门”,再卷成纸筒粘好,作为“炉灶”立于桌上。 实验过程:点燃蚊香,靠近“炉门”,看到烟直升,不进入炉内。再点燃蜡烛,将纸筒套在蜡烛周围,将燃着的香靠近“炉门”,看到烟由“炉门”进入筒内,从筒上口冒出。此“炉灶生火”的模拟实验简单,易行,便于观察。 研究讨论海风和季风成因的模拟实验:用两只烧杯分别盛有黄沙和水(代表陆地和海洋),分别安放两支温度计在两烧杯中(沙和水 The lesson “What forces make the atmosphere flow into the wind” can simplify the experiment of “cooking fire at the stove” and supplement the simulation experiment of “the cause of sea breeze and monsoon”. Experimental equipment (one per person): 15cm x 20cm paper, scissors, paste, matches, short candles, mosquito coils. Production method: Cut a piece of 1cm×1cm at the bottom of the paper, as a “furnace door”, and roll it into a paper tube to stick it well. As a “stove,” stand on the table. Experimental procedure: Igniting mosquito coils, close to the “door”, and seeing the smoke rise straight into the furnace. Then light the candle, put the paper tube around the candle, and place the burning incense near the “door”, and see the smoke enter the cylinder from the “door” and emerge from the top of the cylinder. This “cooking fire” simulation experiment is simple, easy, and easy to observe. Study simulations to discuss the causes of sea breezes and monsoons: use two beakers to hold yellow sand and water (representing land and sea) and place two thermometers in two beakers (sand and water)