Question

which event is an example of melting?
a. wet clothes are drying on a clothesline.
b. the outside of a glass of ice water becomes moist.
c. fog forms in a valley.
d. water drips from an icicle on the edge of a roof.

Explanation:

Melting is the process of a solid turning into a liquid. An icicle is solid ice. When water drips from an icicle, it means the ice (solid) is turning into water (liquid), which is melting.

• Option A: Wet clothes drying is evaporation (liquid to gas).
• Option B: Moisture on the outside of a glass of ice - water is condensation (gas to liquid).
• Option C: Fog forming is condensation (gas to liquid).

Answer:

D. Water drips from an icicle on the edge of a roof.