Trees and Plants

Plants which live in water!

Some plants live completely under the water. Some float on the surface. Others grow in the water of ponds or on the banks of rivers and are partly covered by water. The plant Elodea has a long, strong underwater root which is anchored to the water bed.
The stem and leaves, which are on the surface, are thin, so that they are able to resist the wind without being uprooted. The water lily floats on water. The floating leaves have the stomata on the upper part exposed to the air.

Water Plants

The flower of the water lily closes during the night and opens out at dawn.
The water Chestnut has floating leaves.
The water Buttercup has yellow flowers and long, pointed leaves.

Water Lilly

This plant flourishes near pools and lakes. The Fanwort grows around swamps. It has flowers on a stalk which can be up to 2.5m long.

Water Buttercup

Water Buttercup belongs to Ranunculus a large genus of about 600 species of plants in. Members of the genus include the buttercups, spearworts, and water crowfoots. The petals are often highly lustrous, especially in yellow species. Buttercups usually flower in the spring.

Water Chestnut

The water chestnut is not a nut at all, but an aquatic vegetable that grows in marshes, underwater, in the mud. It has stem-like, tubular green leaves that grow to approximately 1.5 metres.

Above are the examples of the water or aquatic plants present in the world.

What How Why

Why does iron go rusty?

Rust forms on the surface of iron objects when they are exposed to the air. It is the product of a chemical reaction called oxidization. The more the object is exposed to the air, the more rapidly rust spreads.


Seaweeds are very simple plant organisms which live in sea and fresh water. Some seaweeds are microscopic. These together, with tiny little water creatures called plankton are food for fish.

Many-celled seaweeds are anchored to the depths by a small climbing root called rhizoid. Some species are sprinkled with small blisters full of air, so they can remain upright in the water.

Red and brown seaweeds live in salt water, green seaweed mostly in fresh water.