Water in Plants
Class 7 Science: transportation in animals and plants (xylem, phloem, transpiration)
Water a plant, turn on the sun and wind, and watch water climb the stem. Find out which tube carries water and which carries food.
Words to know
- Xylem
- Tubes that carry water and minerals from the roots up to the leaves.
- Phloem
- Tubes that carry food from the leaves to all parts of the plant.
- Transpiration
- Loss of water as vapour from the leaves, mostly through stomata.
- Root hairs
- Tiny hairs on roots that take in water and minerals from the soil.
- Wilting
- Drooping of a plant when it loses more water than it takes in.
Quick check
Answer 3 questions to check what you learned.
Try at home
Put a white flower or a celery stalk in water mixed with ink or food colour. Check after a few hours: where has the colour reached?