Pure water is tasteless, odourless, and colourless. Water can occur in three states: solid (ice), liquid, or gas (vapour).
An Ocean is the biggest body of water.
A Sea is a salt water form which is smaller than an ocean.
ALake is a body of water surrounded by land. It contains fresh water.
A River is a current of water that flows downward until it reaches the sea. Rivers start as underground springs that form brooks and streams. Some rivers flow rapidly; others flow slowly.
A Waterfall is a body of water that drops from a high place. Waterfalls are found on hill and mountainsides.
A Pond is still a body of water which is smaller than a lake.
A Geyser is a hot spring with boiling water that often shoots water into the air like a fountain.
A Swamp is a place where the land is muddy and wet. Many plants such as trees and shrubs grow in swamps.