"What is the temperature today?" What will the weather be like tomorrow PPT courseware

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"What is the temperature today?" What will the weather be like tomorrow PPT courseware

weather forecast

Day to night: Sunny to cloudy, with brief showers in the afternoon;

Wind direction: northerly; wind force: level 2, increasing to level 3 to level 4 in the afternoon.

Temperature: maximum 320C, minimum 260C;

Relative humidity: maximum 80%, minimum 55%

what is the weather

Weather: The comprehensive condition of atmospheric temperature, humidity, air pressure and other factors near the ground in a short period of time.

Weather elements: various weather phenomena such as temperature, air pressure, wind, humidity and precipitation

Weather phenomena: wind, rain, thunder and lightning, etc.

discuss

1. Which of the following words describe the weather?

Overcast to cloudy, warm in winter and cool in summer, clear skies, crisp autumn air

Gentle wind and drizzle, year-round high temperature, winter rain and summer dryness, thunder and lightning

2. Can you tell us about the weather conditions today?

3. Can you say: "The weather in Qiaotou has been very good for the past few years"? Why?

Question: What are the most basic factors that make up weather?

Discuss and answer the following questions

1. What is the temperature?

2. What is the tool for measuring temperature?

3. What is the unit of temperature?

4. How to measure temperature in meteorological observations?

Air temperature: The temperature of the air. That is, the degree of coldness and heat of the local air is the basic element that constitutes the weather.

Tools for measuring temperature: ordinary thermometer, maximum thermometer, minimum thermometer

Unit: Celsius (℃)

Benefits of shutters:

⒈It can prevent the sun and rain, and can be ventilated.

⒉The sunlight inside the louver box cannot be directly illuminated, and the thermometer reading is more consistent with the actual temperature.

⒊The temperature fluctuation inside the louver box is smaller than that outside the box.

Have you ever noticed under what circumstances a dragonfly flies very low?

In weather with low air pressure and high humidity, dragonflies fly very low because their wings become soft, and it is going to rain.

What does ants moving often mean?

Ants moving often indicate that the weather will get bad, it will rain heavily, and the ground will accumulate water.

At a temperature of 35°C, the human body feels hot.

At a temperature of 0℃, the human body feels cold.

The human body feels most comfortable at a temperature of 20°C.

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"What is the temperature today?" What will the weather be like tomorrow PPT courseware 2:

"What is the temperature today?" What will the weather be like tomorrow PPT courseware 2 What is the weather? Weather: the comprehensive status of atmospheric temperature, humidity, air pressure and other factors near the ground in a short period of time. Weather elements: various weather phenomena such as temperature, air pressure, wind, humidity, and precipitation. Weather..

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Update Time: 2024-11-21

This template belongs to science courseware E-education edition fourth grade science volume 1 industry PPT template

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