Is Matter Around Us Pure? | 9th Science Chapter Explained

Описание: Topic : Complete Chapter
Chapter : Is Matter Around Us Pure?
Class : 9th
Subject : Maths
NCERT/CBSE

Description:
Learn the basics of pure substances and mixtures in this Class 9 Science chapter.
Pure substances contain only one kind of particle, while mixtures consist of two or more substances physically mixed.

Key definitions:

Element: A substance that cannot be broken down into simpler substances.

Compound: A pure substance formed by chemical combination of elements.

Homogeneous mixture: Uniform composition (e.g., salt in water).

Heterogeneous mixture: Non-uniform composition (e.g., sand in water).

This chapter builds strong fundamentals in chemistry—crucial for higher studies and competitive exams.

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