"Colorful Weather" Changing Weather PPT Courseware

Description

"Colorful Weather" Changing Weather PPT Courseware

Riddles

⑴The bead curtains hung in the sky fell to the ground and splashed on the flowers and plants, making the flowers and plants laugh.

⑵ There is nowhere to pick the white flowers, they are flying up to the sky one after another, and the house and the ground are covered with cotton wool.

⑶The body is light and light, often flying in the air, sometimes like cotton, sometimes like fish scales.

⑷I can’t hold my body and can’t see my shadow. When it is small it shakes the branches, when it is big it knocks down the house.

1. What is a weather phenomenon?

Weather refers to the atmospheric state comprehensively reflected by various meteorological elements in a certain area and within a certain period of time. Cloudy, sunny, wind, rain, thunder, lightning, fog, frost, snow, etc. that occur in the atmosphere are all weather phenomena.

Sunny day: The warm sun in the sky, the sky is clear and cloudless, the sunshine is shining warmly, and sometimes there is a breeze.

Cloudy day: There is no sun in the sky, the clouds are thick, the sky is gray, and the temperature is not high.

Fog: When there is sufficient moisture, breeze and stable atmosphere, if the air close to the ground cools to a certain extent, the moisture in the air will condense into fine water droplets suspended in the air, reducing visibility at the ground level. This This weather phenomenon is called fog. Fog appears more frequently from February to April in spring.

Snowy day: There are snowflakes in the sky, the wind is blowing, it is very cold, and the sky is gray.

Rainy days: The clouds are thick, the sun cannot be seen, the sky is gray, there is strong wind, and sometimes there are thunder and lightning, which makes people feel a little cold.

Rime: The pure white rime is dotted all over the branches, and the branches and jade trees are glittering and translucent. It is like entering a fairyland in a fairy tale... It is unique to northern winter.

2. Think carefully, from what aspects did we describe various types of weather just now?

Temperature, dynamic scenery, static scenery, light, visibility, sky, ground, etc.

Dew: In the warm season, when ground objects are cooled by strong radiation at night, the temperature of the air in contact with the surface of the object drops, and excess water vapor precipitates after it is above 0°C. This excess water vapor condenses into water droplets and adheres to ground objects. This is dew. Dew mostly occurs at night when the weather is clear and windless or gentle.

Xia: The sky is burning with fiery red clouds, dyeing the clouds with strange colors, orange, golden, purple...layers of light and color, clashing and oscillating in front of our eyes. There is a proverb called "If you don't go out with the morning glow, the sunset will travel thousands of miles." It tells us that we can predict the weather by looking at the glow.

Hail: Hail, like rain, falls from clouds. However, the hail cloud is a very powerful cumulonimbus cloud, and only a particularly powerful cumulonimbus cloud can produce hail.

Sandstorm: Yellow sand rolls in, darkening the sky. Look, the entire sky has been swallowed up by the yellow demon. The dangers of sandstorms are not small.

Idioms related to weather

Green grass, chirping birds and fragrant flowers, warm spring and blooming flowers

Rainbow after the rain, colorful bridge across the sky, shining brightly

Heavy snow has closed the mountains, heavy snowfall, and flying snow all over the sky

Adding insult to injury, the frost strikes and the forest is dyed with frost.

Autumn breeze brings refreshment, golden breeze brings refreshment, north wind howls

The sky is full of stars, the stars are holding the moon, the stars are brilliant

The sunset is like fire, the morning glow is brilliant, and the red clouds are like brocade.

Let’s play games together

Each group draws a "weather card", and each member of the group pretends to be a person or thing when the weather occurs.

The other groups then try to guess what weather the performer has drawn.

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For more information about the "Changing Weather and Colorful Weather" PPT courseware, please click on the "Changing Weather ppt and Colorful Weather ppt" tag.

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Update Time: 2024-10-19

This template belongs to science courseware Hunan Education Edition Third Grade Science Volume 2 industry PPT template

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