[2a U9 Eentsy Weentsy Spider-2]小西妈双语工程2005期131Sam打卡Day129

森森的日常

📌 2a U9 Eentsy Weentsy Spider拓展下雨，水循环 👂 Listening2a2bpeppa pig 📚 Reading1.海尼曼-4本2. 牛津树-8本 📺 Video2a unit 92a unit 10 🎈 Supplement & Game Learn water cycleSam, what can you do with water?S: I can use water to drink, wash hand, wash hair, take a bath,spray water on dad, pour water on dad😂😂.👍👍Fireman can use the water to put out the fire.Do you know where water comes from?S: From the cloud.You're very clever.Where does the water of the cloud come from?S: Sea.(自己看动画片知道的😊)I will tell you the water cycle and then you will know where water comes from.The water cycle can be separated into 4 different stages. At each stage, water changes and moves. water can’t be created or destroyed, instead, it is constantly changing forms in a never ending cycle. 1. EvaporationThe first stage in the water cycle is called evaporation. During this stage, the heat from the sun causes water found in rivers, lakes, and oceans to turn from liquid to gas. We often think about evaporation as the water disappears, but water never truly disappears. Evaporated water is in the form of a gas and it collects in the sky to form clouds. Experiment 1- evaporationLet's do some experiments.Firstly let's heat the water in our pan.Fill some water in the pan and turn on the fire.Can you see the bubbles in the pan? It is turning into gas.Can you see the smoke in the air? This is the gas of the water, The water vapour. the water is turned from the liquid to gas. This is called evaporation.Does the water disappear?S: No.Where is the water?S: It's in the air. 2. CondensationThe second stage in the water cycle is called condensation. Condensation happens when the water vapor (gas) in the clouds becomes cold enough to form water droplets. Clouds are tiny drops of water in the air. They are so small and light that they float in the air. Experiment 2-condensationplease come and check the lid of the pan.Is it dry or wet?It's dry.Yes . then I will pour more water in the pan. let's cover the pan with the lid.And then let's wait for a while. After 1 minute let's check it.Okay come and see what happened!Let's lift up the lid. See this!There are a lot of water drops on the lid.Yes you're right. you know what happened? I tell you the process.When the fire heat the water, the water Evaporate.that is the process of evaporation.They become water vapor and goes up up up. And then they reached the lid.But the lid is not that hot, so they condense.That is the process of comdensation.And when they are too heavy, and then they fall off.That is the process of, precipitation. Experiment 3-condensation: cloud （Eric妈妈）Clouds are tiny drops of water in the air. They are so small and light that they float in the air.Not all clouds are the same. There are three main types of clouds called cumulus, cirrus, and stratus. Cumulus积云/ˈkjuːmjʊləs/  - Cumulus clouds are the big puffy white clouds. They look like floating cotton. Sometimes they can turn into cumulonimbus or tall towering cumulus clouds. These clouds are thunderstorm clouds. 积云是蓬松的大白云。它们看起来像漂浮的棉花。有时它们会变成积雨云或高耸的积云。这些云是雷暴云。 Cirrus卷云/ˈsɪrəs/ - Cirrus clouds are high, thin clouds made of ice crystals. They generally mean good weather is on the way. 卷云是由冰晶制成的稀薄的高云,他们通常表示天气晴朗。 Stratus/ˈstreɪtəs, ˈstræt-/ 层云 - Stratus clouds are the low flat and large clouds that tend to cover the entire sky. They give us those "overcast" days and can drop light rain called drizzle. 层云是低平的大云，往往会覆盖整个天空。他们给了我们那些“阴天”的天气，可以下小雨，称为毛毛雨。 Game: Making clouds with cotton balls1) Place a basket of cotton balls, glue, and gray paint.2) Pull and pinch the cotton balls to creat each type of cloud. You can color the clouds with a gray marker to create the cumulonimbus and stratus clouds.认识云的类型，一边观察一边讨论，尝试制作出相似的云朵。 3. PrecipitationThe third stage in the water cycle is called precipitation. When water falls from clouds it's called precipitation. In this stage, water falls from the sky in various forms of precipitation: RainSleetSnowHail Experiment 3-precipitation: RAINGetting the Rain Cloud in a Jar ReadyClear jargauzewatercolorAnother jar full of waterPlastic pipettes or dropperPaper towels1). place the gauze on top of the empty jar.2). fill another jar with water and colored it with blue color. 3). fill up pipette with blue water and then to carefully squirt the water onto the gauze.4). The gauze cloud got heavier and heavier with water until finally…rain!Let's talk about how clouds are formed by water vapor/ˈveɪpər/ rising into the air and condensing into tiny droplets. When billions of these droplets come together, a visible cloud forms. a cloud can attract more water to itself. When water droplets grow heavy enough, gravity pulls them down as raindrops! 4. CollectionThe final stage of the water cycle is often called the collection stage. At this stage, the precipitation that falls from the sky is gathered into oceans, lakes, rivers, and even the rain puddles.After water is collected into Earth’s rivers and lakes, the process begins again. The water cycle keeps repeating and it never ends! 5. Water cycleThe water cycle describes how water evaporates from the surface of the earth, rises into the atmosphere, cools and condenses into rain or snow in clouds, and falls again to the surface as precipitation. The water falling on land collects in rivers and lakes, soil, and porous layers of rock, and much of it flows back into the oceans, where it will once more evaporate. The cycling of water in and out of the atmosphere is a significant aspect of the weather patterns on Earth. Experiment 5-water cyclethere is the last and the most interesting experiment for us today.Cut a 2 liter bottle in half. Put warm water in the bottom. In the top of the bottle add ice, then put the top of the bottle into the bottom of the bottle.And you please just keep your eyes wide open and check what is happenning on this bottle!Did you see the water evaporate？When the water evaporate, they go up and up. they reach the cold lid. they cool very quickly and then they condense. that is the process of condensation.And gradually they become bigger and bigger, heavier and heavier.When it is too heavy what will happen?The water will fall off.yes you're right. when they fall off, that is the process of precipitation.When they fall off, they fall in the box. And we can see that it is the process of collection.