The accurate statement about snowflakes is:
"They form around particles in the atmosphere."
Snowflakes are formed when water vapor in the atmosphere condenses directly into ice crystals. These ice crystals form around tiny particles such as dust or pollen in the air. As water vapor cools and freezes on these particles, it creates the intricate and unique shapes of snowflakes that we see falling from the sky. This process results in the formation of delicate, hexagonally symmetrical snowflakes that vary in size and shape due to different atmospheric conditions.
In contrast to the other options:
- Snowflakes do not condense as solid water on grass; they form in the atmosphere.
- Snowflakes do not fall from the clouds as round pellets; they have a characteristic crystalline structure.
- Snowflakes do not form when temperatures are above freezing; they form when the temperature is low enough for water vapor to freeze into ice crystals.
