When rain turns back into a gas.

When rain turns back into a gas.

• A. Evaporation
• B. Condensation
• C. Melting
• D. Deposition

Answer: (A)

Evaporation is the change from a liquid to a gas, which happens when the liquid gains enough energy for its molecules to break away into the air as vapor. In the atmosphere, raindrops can heat up and their water molecules move faster; some escape as water vapor, so rain can turn back into a gas. The other processes are the opposite kinds of changes: condensation is gas turning into liquid; melting is solid turning into liquid; deposition is gas turning directly into a solid. So evaporation is the correct description for rain turning back into a gas.

Evaporation is the change from a liquid to a gas, which happens when the liquid gains enough energy for its molecules to break away into the air as vapor. In the atmosphere, raindrops can heat up and their water molecules move faster; some escape as water vapor, so rain can turn back into a gas. The other processes are the opposite kinds of changes: condensation is gas turning into liquid; melting is solid turning into liquid; deposition is gas turning directly into a solid. So evaporation is the correct description for rain turning back into a gas.