What exactly does a snowflake look like What does a snowflake look like?

Snowflakes are mostly hexagonal in shape, and this is because snowflakes belong toHexagonal crystal systemSnowflakes in the clouds"Embryos"There are two main shapes of Xiaoice crystals. One is hexagonal, long and thin, called column crystal, but sometimes its ends are pointed, like a needle, called needle crystal. The other is in the form of hexagonal flakes, like the flakes cut from a hexagonal pencil, called flakes.

Snowflakes are solid precipitation from the condensation of water vapor in the sky, and the structure changes with the change of temperature. The size of a single snowflake is usually between millimeters.

The reasons for the formation of snowflakes are as follows:

Xiaoice is changed by the increase of small ice crystals, and the ice molecules are hexagonal for the most, so the formation of snowflakes is mostly hexagonal, and the shape of each snowflake is not exactly the same. The variety of snowflake shapes is closely related to the water vapor conditions at the time of its formation.

For hexagonal flake ice crystals, there are correspondingly different saturated water vapor pressures due to the different degrees of curvature on the surface, edges, and corners of the snowflake.

The saturated water vapor pressure is the highest at the corner, followed by the upper edge, and the smallest on the plane. In the case of the same water vapor pressure, the condensation growth of ice crystals is also different due to the different saturated water vapor pressures on the surface, edges and corners of ice crystals.

If the water vapor in the cloud is not abundant, the actual water vapor pressure is only greater than the saturated water vapor pressure of the plane, and the water vapor only condenses on the surface, and the formation of columnar snowflakes is formed.

If there is a little more water vapor, the actual water vapor pressure is greater than the saturated water vapor pressure on the edge, and the water vapor will condense on the edge and on the surface, because the speed of the condensation is also related to the degree of bending, the condensation is faster in the place where the degree of bending is larger, so the condensation on the edge of the ice crystal is faster than the surface, and more flakes are formed at this time.

1. White snowflakes are swirling and dancing in the air.

2. Snowflakes like catkins flutter in the air.

3. The snowflakes in the cold winter are flying in the air like righteousness.

4. Crystal clear snowflakes flutter gently in the air.

5. Light snowflakes are scattered in the air.

6. Goose-feather snowflakes are flying in the air.

7. Beautiful snowflakes outside the window are swaying and dancing elegantly in the air.

8. Dandelion-like snowflakes are flying in the air.

9. The snowflakes in the sky are flying freely in the air.

10. Wonderful little snowflakes are flying in the air with the wind.

Snow is a natural phenomenon of water condensing in the air and then falling.

Snow is the natural phenomenon of water or ice condensing in the air and then falling, or snowflakes falling. Snow is a form of water in a solid state. Snowflakes are formed by tiny ice crystals colliding and sticking together in clouds to form a variety of shapes.

No two snowflakes are exactly the same, but the snowflakes still adhere to the basic hexagonal symmetry of the original ice crystals. Through the microscope, you can see that most of the intricate structures of snowflakes are hexagonal, and the center of the snowflake must show a symmetrical hexagon, and the reason why it has such a shape is that it is arranged in the most efficient way on the plane, and it is one of the objects of crystallography research.

When the weather is very cold, the ice crystals do not stick together easily, and the snow is small droplets of fine powder. A closer look at the shape of the snowdroplets shows that the small snow droplets are formed by the accumulation of many fine white ice particles. As the cold air moves forward and the updrafts weaken, the water vapor in the clouds condenses directly on the ice crystals into larger forms, which are known as snowflakes.

If the temperature is close to freezing, wet snow will fall, forming large snowflakes, especially when there is no wind. Large star-shaped snowflakes can be 5 to 7 cm in diameter. Most snowflakes melt into rain on the way down to the ground, and only when the air close to the ground is cold enough can the snowflakes fall to the ground and form snow.

A snowflake represents light snow.

Two snowflakes represent the middle snow, and three snowflakes represent heavy snow.

Weather signs, also known as weather symbols, are a simple symbol used to represent meteorology, and are generally used to balance sunny days, rain, fog, etc.