"The Story of Storm, Thunder and Lightning" PPT courseware

Description

"The Story of Storm, Thunder and Lightning" PPT courseware

Wind is a common natural phenomenon in daily life. The movement of air becomes wind, and wind is an invisible air current.

Wind, what good is it?

can make people cool

Can blow dry hair

Wind, what's the harm?

Strong winds can blow away hats. Remember to wear a hat when the wind is strong.

The most destructive winds are typhoons and tornadoes

The evaporated water vapor gathers in the liquefied air to form condensation nuclei, which gradually increase in size. When it reaches a certain level, rain falls.

What are the benefits of rain?

Rain can irrigate crops and facilitate tree planting.

Rain can reduce dust in the air and lower the temperature

Rain helps reservoirs store water, replenish groundwater, and replenish river water, which is beneficial to power generation and shipping.

When it rains, it can isolate the noisy world and create a peaceful environment. It can hypnotize people and wash the streets.

What's wrong with rain?

1. Too much rain will affect plant growth.

2. During the plum rainy season in the middle and lower reaches of the Yangtze River in my country, there will be a long period of gloomy and rainy weather. At this time, everything is easily damp and moldy.

3. When thunderstorms come, there will often be strong winds and thunderstorms. When strong winds come, sand and rocks fly away, turning off roofs and knocking down walls. During the wind and rain, things on the street danced with the wind, flying everywhere, and even uprooting big trees.

4. Continuous rainy days can also affect people’s mood, making them feel bored and depressed.

5. Too much rain can cause traffic jams and trigger natural disasters such as landslides and mudslides.

6. Rain erodes many buildings to a greater or lesser extent 7. Causes road slippage, causing car accidents

As the clouds rub and collide with each other, different clouds carry different charges. When the voltage reaches a level that can pass through the air, two adjacent clouds will discharge, producing sparks and loud noises.

Thunder (Thunder is a majestic and somewhat intimidating electrical discharge accompanied by lightning and thunder.)

How to prevent lightning

1. Install lightning protection devices on buildings. That is, the lightning protection device is used to introduce the lightning current into the earth and disappear.

2. During thunderstorms, people should not get close to high-voltage transformer rooms, high-voltage wires, isolated high-rise buildings, chimneys, poles, big trees, flagpoles, etc., and do not stand on open highlands or take shelter under big trees.

3. Umbrellas with metal posts cannot be used. When operating in the suburbs or in the open air, do not use metal tools, such as crowbars, etc.

4. Do not wear wet clothes near or stand on the stacks of open-air metal products.

5. Do not turn on your mobile phone on the top of a mountain during a thunderstorm, let alone make any phone calls.

6. Do not touch or approach the grounding conductor of the lightning protection device during thunderstorms.

7. During thunderstorms, lighting lines, telephone lines, TV lines and other lines should be kept away indoors to prevent people from being harmed by lightning.

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Update Time: 2024-10-04

This template belongs to Kindergarten courseware Kindergarten language courseware industry PPT template

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