Why does snow come in flakes and sometimes in peas?

Snowflakes are formed when water vapor in the atmosphere condenses around a nucleus, such as a dust particle, and forms an ice crystal. As the ice crystal falls through the atmosphere, it is subjected to different temperatures and humidities, which causes the ice crystal to grow in a unique pattern. The shape of the snowflake is determined by the temperature and humidity of the atmosphere as the snowflake falls.

Snow peas, on the other hand, are formed when snowflakes become aggregated together. This occurs when the snowflakes come in contact with each other and freeze together. When this happens, the individual snowflakes become joined together and form a larger, pea-like shape. The size and shape of the snow pea depends on the size of the individual snowflakes that make up the pea, as well as the temperature of the atmosphere.

In summary, snowflakes are formed when water vapor condenses and forms an ice crystal, and snow peas are formed when individual snowflakes freeze together and form a larger, pea-like shape. The size and shape of the snowflakes and snow peas are determined by the temperature and humidity of the atmosphere as the snowflakes and snow peas form.