♻️ap environmental science review

Evaporation

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

Evaporation is the process by which a liquid turns into vapor or gas due to heat energy. It occurs when molecules at the surface gain enough energy to escape into the atmosphere.