SCIENCE
PHYSICAL SCIENCES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
True
|
|
|
False
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -Air is an example of the type of matter known as gas. Other common forms of matter are solids and liquids. Gas is a form of matter that can change its shape and volume. Considering the air-filled balloon, you know you can squeeze the balloon to change its shape.
Detailed explanation-2: -But, like solids and liquids, air is matter. It has weight (more than we might imagine), it takes up space, and it is composed of particles too small and too spread apart to see. Air, a mixture of gases, shares properties with water vapor, the gaseous form of water that is part of air.
Detailed explanation-3: -Matter is anything that have mass and occupies space. As air occupies space and has mass, it is a matter.
Detailed explanation-4: -A substance that has a fixed chemical composition throughout is called a pure substance such as water, air, and nitrogen.