How to draw when the second grade art style comes?

The second grade art style is coming, and the painting method is as follows:

1 Students in Grade 2 know that wind is a kind of weather, a kind of meteorology and an intangible thing. If you want to draw, you should describe it according to the object. First, we draw an umbrella on the paper with a pen. It rained and windy in summer, so we drew a figure with an umbrella.

2. Then draw some water drops, dark clouds in the sky, and draw the inclination of the umbrella, because the wind will blow the umbrella. Draw two good stick arcs next to the cool color of the umbrella, so that you can draw the wind and people, color and spit, but don't add more color to the wind.

Wind is a natural phenomenon caused by air flow, which is caused by solar radiation heat. Sunlight shines on the earth's surface, causing the surface temperature to rise, and the surface air to expand and become lighter and lighter.

After the hot air rises, the cold air with low temperature flows in horizontally, and the rising air falls down because it gradually cools and becomes heavier. Because the surface temperature is high, it will heat up the air, and this airflow will produce wind. There are many kinds of winds, such as tornadoes, typhoons, cyclones, monsoons, natural winds, breezes, strong winds, violent winds and so on.

Scientifically speaking, wind often refers to the horizontal motion component of air, including direction and size, that is, wind direction and wind speed; But for flight, it also includes vertical motion components, so-called vertical or ascending and descending airflow. Strong winds can move objects and their directions (mass of matter). The wind is very fast. The strength of the wind is expressed by the wind speed, generally measured by the size of the wind or how many meters/second, which is divided into thirteen levels.