Some Useful Chemicals in Grade-7, Reference Note

Some Useful Chemicals

 Chemicals are substances obtained by a chemical process or producing a chemical effect. 

Mixture in Grade-7, Reference Note

Mixture

Mixture is the combination of two or more than two substance in specific quantiy.

Living Beings  in Grade-7, Reference Note

Living Beings

Living Beings are those which perform essential activities such as food, development, reproduction, and interactions with others.

Cell and Tissue in Grade-7, Reference Note

Cell and Tissue

Cell is the structura, and functional unit of life where as a biological organizational level between cells and a complete organ is tissue.

Life Process in Grade-7, Reference Note

Life Process

The basic processes in living organisms that are necessary for maintaining their life are life processes.

Structure of Earth in Grade-7, Reference Note

Structure of Earth

The structure of Earth is the concentric spherical layers subdividing the Solid earth, excluding Earth's atmosphere and hydrosphere.

Weather and Climate in Grade-7, Reference Note

Weather and Climate

Weather and climate are the states of the atmosphere at a particular place and time as regards heat, cloudiness, dryness, sunshine, wind, rain, etc.

Environment and its Balance in Grade-7, Reference Note

Environment and its Balance

Environmental Balance is important if mankind is truly to make the most of the earth inherited from its forefathers.

The Earth and Space in Grade-7, Reference Note

The Earth and Space

Earth is the third planet from the Sun and the fifth largest planet in the solar system in terms of size and mass. 

Environment Degradation & its Conservation in Grade-7, Reference Note

Environment Degradation & its Conservation

Environmental degradation is the deterioration  of the environment through exhaustion of natural resources.

Environment and Sustainable Development in Grade-7, Reference Note

Environment and Sustainable Development

Development which meets the needs of the present without compromising the ability of future generations to meet their own needs is sustainable development.

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