Matter is defined as:

Matter is defined as:

• A. Any substance that has mass and occupies space
• B. A form of energy
• C. Only substances that are visible
• D. The weight of an object

Answer: (A)

Matter is anything that has mass and occupies space. Mass measures how much matter there is, while volume tells how much space it takes up. All physical substances—solids, liquids, and gases—have mass and occupy space, even if they’re not visible, like air or plasma. Energy isn’t matter, though it’s related to matter through physics, and energy can be transformed into matter under extreme conditions. The weight of an object is the gravitational force acting on its mass, not a definition of matter itself. Visibility isn’t a requirement for matter, since many forms of matter are invisible. So the statement that matter is any substance that has mass and occupies space captures the concept correctly.

Matter is anything that has mass and occupies space. Mass measures how much matter there is, while volume tells how much space it takes up. All physical substances—solids, liquids, and gases—have mass and occupy space, even if they’re not visible, like air or plasma. Energy isn’t matter, though it’s related to matter through physics, and energy can be transformed into matter under extreme conditions. The weight of an object is the gravitational force acting on its mass, not a definition of matter itself. Visibility isn’t a requirement for matter, since many forms of matter are invisible. So the statement that matter is any substance that has mass and occupies space captures the concept correctly.