Standard Science Primary 5 Cycles

Early in the morning, Siti noticed water droplets on the grass in her garden, even though it did not rain the night before. What caused the water droplets to form?

A Water from the ground seeped out onto the grass.
B Warm water vapour in the air lost heat to the cool grass and condensed.
C The grass released water to keep itself cool.
D Rainclouds formed near the ground and dropped rain only on the grass.
Show Worked Solution

Worked Solution

Step 1: Identify the phenomenon as dew formation. Step 2: At night, the temperature drops and the grass becomes cool. Step 3: Warm water vapour in the surrounding air touches the cool grass, loses heat, and condenses into liquid water droplets.

Correct answer: Warm water vapour in the air lost heat to the cool grass and condensed.

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