Which phrase is the best definition of matter?
A. A substance that cannot be divided into smaller pieces
B. A substance that can change in both volume and shape
C. Something that occupies a volume of space and also has mass
D. The smallest piece of a chemical compound that retains theproperties of the compound
Answer: C. Something that occupies a volume of space and also has mass
Any substance that takes up space and has mass is called matter. It is the element which forms everything physical in universe from the smallest subatomic particles till largest celestial bodies. Matter comes in different states, such as solids, liquids and gases, and can undergo both physical and chemical changes while retaining its basic attributes: occupying the space and having the weight. This statement includes everything from substance to matter thus making it the most exact and comprehensive definition among the given options .
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