9. Know the sun认识太阳 1) We know that the sun can shine and heat. What are the secrets of the sun?我们知道太阳能够发光发热，太阳还有哪些秘密呢? 2) Task Card任务卡 3) Collect information about the sun.搜集关于太阳的资料。 4) Material package材料包 5) Round cardboard, straight ruler, etc. 圆形纸板、直尺等。 6) Activity process活动过程 7) What does the sun look like? 太阳是什么样子的? 8) The Sun is a huge and hot gas planet with a surface temperature of about 6, 000 ℃, 太阳是一个巨大而炽热的气体星球，表面温度约为6000℃， 9) internal temperature up to 15 million ℃.内部温度高达 1500 万℃。 10) convective zone对流区 11) Radiation zone辐射区 12) Core area核心区 13) Photosphere layer光球层 14) Color spherical layer色球层 15) Coronlayer日冕层 16) Let's study the sun我们来研究 太阳 17) What is the sun different from the earth? 太阳和地球有什么不一样? 18) 1.Objects like the sun that glow and heat themselves belong to stars.像太阳这样能自己发光发热的天体属于恒星。 19) 2.Objects like Earth that orbit stars and cannot shine in themselves belong to the planet. 像地球这样国绕恒星运行、本身不能发光的天体属于行星。 20) How big is the sun? 太阳有多大? 21) The sun does not look very much. 太阳看上去并不大。 22) Let's do a simulation.我们来做个模拟实验。 23) Think of circular cardboard as looking more "sun ".将圆形纸板当作 看起来越“太阳”。 24) The farther back the sun looks...越往后退太阳看起来越…… 25) Data Card资料卡 26) 1.The diameter of the sun is about 1.392 million km, and the average distance between the sun and the earth is about 150 million km.太阳的直径约为 139.2万千米，太阳与地球的平均距离约为 1.5 亿千米。 27) 2.So, although the sun is big, it doesn't look big on earth.因此，虽然太阳很大，但在地球上看起来太阳并不大。 28) Outreach activities拓展活动 29) Continue to consult the information to learn more about the sun.继续查阅资料，了解太阳的更多秘密。 |
Powered by Discuz! X3.4
Copyright © 2001-2020, Tencent Cloud.
