"How to Forecast the Weather" Changing Weather PPT Courseware

Description

"How to Forecast the Weather" Changing Weather PPT Courseware

1. How to obtain weather forecast information

In weather forecasts, a weather situation map often appears before each specific location is forecast. This map is called a weather map.

2. Weather map:

Used to represent weather conditions, it is a map that can display meteorological information in different places.

1. Green - land

blue ocean

white - clouds

2. Isobaric lines: lines connecting places with equal air pressures.

Low pressure area: An area where the isobars are closed and the central air pressure is lower than the surrounding areas.

High pressure area: an area where the isobars are closed and the central air pressure is higher than the surrounding areas.

How does high and low pressure air move? What weather will it bring?

3. Front - an important weather system that affects the weather,

Cold front: A front (of cold air) that moves toward the side of warm air.

Warm front: A front of (warm air) moving to the side of cold air.

Explain "a rainbow in the east, a sun in the east and a rainbow in the west, rain".

Rainbows are formed when sunlight is refracted by water vapor in the atmosphere.

Our country's weather systems are affected by westerly airflow and mostly move eastward.

1) There is a rainbow in the east, which means that the air in the east is humid and the air in the west is dry. What will affect the local area in the future is dry air mass and sunny weather.

2) There is a rainbow in the west, indicating that the air in the west is relatively humid. In the future, humid air masses will affect the local area, and rainy weather may occur. This weather proverb is more applicable to summer and autumn.

Keywords: Changing Weather Teaching Courseware, How to Forecast the Weather Teaching Courseware, Hunan Education Edition Third Grade Science PPT Courseware Download Volume 2, Third Grade Science Slide Courseware Download, Changing Weather PPT Courseware Download, How to Forecast the Weather PPT Courseware Download,. PPT format;

For more information about the PPT courseware "How to Forecast the Weather in Changing Weather", please click the "How to Forecast the Weather in Changing Weather ppt" tag.

"Light and Vision" colorful light PPT courseware:

"Light and Vision" colorful light PPT courseware How can the eyes see the objects around them clearly? 1. The object must have light (the object emits light or reflects light); 2. The light emitted from the object must enter the eyeball of a normal person. Light emitted or reflected by an object strikes the eye..

"Light Phenomena Related to Water" colorful light PPT courseware:

"Light Phenomenon Related to Water" Colorful Light PPT Courseware Light Phenomenon Related to Water Can you give examples of the effects that water can have on light? Why does the water in the swimming pool appear shallower than it actually is? Making a Magnifying Glass from Water Is it possible to make a magnifying glass from water? ..

"Light Through Glass" colorful light PPT courseware:

"Light Through Glass" Colorful Light PPT Courseware Different Shapes of Glass Convex Lens Triangular Prism Concave Lens What is the function of a magnifying glass? A magnifying glass can magnify objects. A magnifying glass can focus light. An interesting prism. Let’s do a dispersion experiment too! Mix the decomposed colors...

File Info

Update Time: 2024-10-13

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

Preview