STD VIII – WATER (Hybrid)

Introduction

Water is the one of the most important resources and is a universal solvent. Children will know and understand that water is important for all living beings (animals, human beings,plants and trees), comes from different sources and has many uses. There are different sources of water such as sea, well, river, lake, pond, rain. We use it daily for washing, bathing, drinking

Uses of Water

Water is used as a universal solvent for dissolving inorganic and organic matter.

It is the main constituent in the human body for a large number of metabolic activities.

Presence of water is effective in controlling climatic conditions. Seasons and climates are influenced by the water cycle.

What is a Solution

A solution is a homogenous mixture of a solute in a solvent. For example, sodium chloride (solute) dissolved in water (solvent) gives a solution of sodium chloride.