1. Substances that do not allow heat to pass through them are called insulators. Rubber, plastic, glass and clay are insulators.

    Substances that do not allow heat to pass through them are called insulators. Rubber, plastic, glass and clay are insulators.

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  2. Indicators are special substances that are used to test whether a substance is acidic or basic in nature.

    Indicators are special substances that are used to test whether a substance is acidic or basic in nature.

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  3. Convection is a process in which heat is transferred within the liquid due to movement of particles of the liquid.

    Convection is a process in which heat is transferred within the liquid due to movement of particles of the liquid.

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  4. Saliva is the digestive juice which helps in digestion.

    Saliva is the digestive juice which helps in digestion.

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  5. It is the usage of simpler forms of food particles by the body to generate energy required to do various activities.

    It is the usage of simpler forms of food particles by the body to generate energy required to do various activities.

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