Evaporation of water from the leaves of a plant.

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Study for the Cambridge Science – States of Matter Test. Prepare with flashcards and multiple choice questions, with hints and explanations for each question. Ready yourself for your exam!

Multiple Choice

Evaporation of water from the leaves of a plant.

Explanation:
Transpiration is the evaporation of water from plant leaves, mainly through openings called stomata. Water absorbed by the roots moves up through the plant and exits as water vapor from the leaf surfaces. This process helps pull water up the plant and also cools the leaves. It’s not open water evaporation, which happens from free surfaces of water like ponds or streams. It isn’t precipitation, which is water falling as rain or snow. It isn’t the water cycle as a whole, which refers to the global series of processes including evaporation, condensation, precipitation, and collection.

Transpiration is the evaporation of water from plant leaves, mainly through openings called stomata. Water absorbed by the roots moves up through the plant and exits as water vapor from the leaf surfaces. This process helps pull water up the plant and also cools the leaves.

It’s not open water evaporation, which happens from free surfaces of water like ponds or streams. It isn’t precipitation, which is water falling as rain or snow. It isn’t the water cycle as a whole, which refers to the global series of processes including evaporation, condensation, precipitation, and collection.

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