How does frost form?
Frost on objects is just water vapor in the air that has deposited itself as ice onto a surface. Frost forms on objects close to the ground, such as blades of grass.At night, a blade of grass loses energy by emitting radiation (a non-lethal kind) while it gains energy by absorbing the energy emitted from surrounding objects. Under clear nighttime skies, objects near the ground emit more radiation than they receive from the sky, and so a blade of grass cools as its energy losses are greater than its energy gains. If the temperature of a grass blade gets cold enough and there is sufficient water vapor in the environment, frost will form on the grass. Continue reading →
How does snow form?
Frozen Ground and the Frost Line: How and Why it Freezes - Powerblanket
Iowa weather: Why frost happens even when temperatures don't reach freezing
frost
When is the Normal Last Freeze? Patchy frost and cool Canadian air in the forecast
How does frost form? Here are some frost facts to know
Frost formation
How does frost form?
How does frost form with Rusty Lord
Frost - Interesting Facts For Kids/Young Students
Science of Snow National Snow and Ice Data Center
The difference between hoar frost and rime ice
Guide to Frost