common noun

verb. aired; airing; airs. Definition of air (Entry 2 of 2) transitive verb. 1 : to expose to the air for drying, purifying, or refreshing : ventilate —often used with out He opened the windows to air out the room.

As I Remember

Air is a mixture of many gases and tiny dust particles. It is the clear gas in which living things live and breathe. Air is a mixture of about 78% of nitrogen, 21% of oxygen, 0.9% of argon, 0.04% of carbon dioxide, and very small amounts of other gases.

Solution: Air is a mixture of nitrogen, oxygen, carbon dioxide, water vapors, and some other gases. It also contains dust particles.

There are four categories for air masses: arctic, tropical, polar and equatorial. Arctic air masses form in the Arctic region and are very cold. Tropical air masses form in low-latitude areas and are moderately warm. Polar air masses take shape in high-latitude regions and are cold.

What are the types of air? Hot air. Cold air. Dry air.

Types of air pollution

• particulate matter.
• nitrogen dioxide.
• ozone.
• sulphur dioxide.

Important Uses of Air

• Sustain life and growth.
• Combustion.
• Maintaining Temperature.
• Supplier of Energy.
• Photosynthesis.

Air is a protective cushion. The air in our atmosphere acts as insulation, keeping the Earth from getting too cold or too hot. Ozone, another type of gas in the air, also protects us from too much sunlight. Air in the atmosphere can also protect us from meteoroids.

The properties of air are:

• Air takes up space.
• Air has mass.
• Air is affected by heat.
• Air exerts pressure.
• Air can be compressed.
• Air is affected by altitude. Related questions.

Answer. Answer: It is a compound is not a property of AIR.

The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.

Physical Properties for Air

Air is a mixture of gases, 78% nitrogen and 21% oxygen with traces of water vapor, carbon dioxide, argon, and various other components. We usually model air as a uniform (no variation or fluctuation) gas with properties that are averaged from all the individual components.

The air in the atmosphere consists of nitrogen, oxygen, which is the life-sustaining substance for animals and humans, carbon dioxide, water vapour and small amounts of other elements (argon, neon, etc.). Higher in the atmosphere air also contains ozone, helium and hydrogen.

Introducing Air Science Activities for Preschoolers

1. Blow Bubbles with a Straw or your Mouth.
2. Watch the Clouds Move through the Sky & Study the Clouds.
3. Blow Up a Balloon.
4. Wave your Arm to Feel the Air.
5. Leave a Glass of Water Out and See What Happens Over Time as the Air Escapes (bubbles in the water and on the glass)

Since air is invisible we easily forget that it is all around us. When we blow air in a balloon, we can feel the air pushing on the balloon. It’s the same with a tire or basketball. When we sit in front of a fan, we can actually feel the air molecules moving in the same direction.

All living things need air. Animals and plants would die without it. Air also holds airplanes and kites above the ground, and it is used to inflate tires and balloons. Air surrounds Earth as the atmosphere.

Air is a tasteless, odorless and invisible mix of gases that is primarily made up of oxygen and nitrogen. There are layers of air that cover the earth, which is known as the atmosphere. All over the world, there are large and small bodies of air called air masses that remain about the same temperature and moisture.

Is air made of matter? To fit into the standard definition of matter in science, air must have mass and it must take up space. Yes, air does have mass and does take up physical space, so, yes, air is made of matter.

Air is a mixture of about 78% of nitrogen, 21% of oxygen, 0.9% of argon, 0.04% of carbon dioxide, and very small amounts of other gases. There is an average of about 1% water vapour. Animals live and need to breathe the oxygen in the air.

Everyday functions of the body like digesting your food, moving your muscles or even just thinking, need oxygen. When these processes happen, a gas called carbon dioxide is produced as a waste product. The job of your lungs is to provide your body with oxygen and to get rid of the waste gas, carbon dioxide.

The air is full of water, even if you can’t see it. Higher in the sky where it is colder than at the land surface, invisible water vapor condenses into tiny liquid water droplets—clouds.

Air is not a pure substance because it is a homogeneous mixture of different substances.