Search results
- Dictionaryair/ɛː/
noun
- 1. the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
- 2. an impression of a quality or manner given by someone or something: "she answered with a faint air of boredom" Similar
verb
- 1. express (an opinion or grievance) publicly: "a meeting in which long-standing grievances were aired" Similar
- 2. expose (a room) to the open air in order to ventilate it: British "the window sashes were lifted regularly to air the room" Similar
Powered by Oxford Dictionaries
Oct 19, 2023 · Air is the invisible mixture of gases that surrounds Earth. Air contains important substances, such as oxygen and nitrogen, that most species need to survive. Grades. 5 - 8. Subjects. Earth Science, Meteorology, Physics. Photograph. Parachuting through the Air.
Jun 28, 2024 · air, mixture of gases comprising the Earth’s atmosphere. The mixture contains a group of gases of nearly constant concentrations and a group with concentrations that are variable in both space and time.
Jun 26, 2024 · So what is air, exactly? It’s a mixture of different gases. The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen. 1 of 11. Games. Activities. People. Videos. Mystery. Learn new things about air.
Air is a mixture of many gases and tiny dust particles. It is the clear gas in which living things live and breathe . It has an indefinite shape and volume .
Air is a mixture of gases, most of which are naturally occurring. Air also contains a significant amount of human-made air pollutants, including some that are not safe to breathe and some that warm our planet’s climate. The troposphere also contains water in all three phases (liquid, solid, and gas) as well as solid particles called aerosols.
This is a learning video for grade 2 science students. The topics covered are: 1. What is air? 2. What is the importance of air in our lives? ...more.
The atmosphere of Earth is the planetary atmosphere of Earth, composed of a layer of gas mixture that surrounds the Earth's planetary surface (both lands and oceans), known collectively as air, with variable quantities of suspended aerosols and particulates (which create weather features such as clouds and hazes), all retained by Earth's gravity.
Nov 29, 2019 · Air is the general name for the mixture of gases that makes up the Earth's atmosphere. This gas is primarily nitrogen (78%), mixed with oxygen (21%), water vapor (variable), argon (0.9%), carbon dioxide (0.04%), and trace gases. Pure air has no discernible scent and no color.
Air surrounds Earth as the atmosphere. Air has no color, taste, or odor. Although air is invisible, people can hear air when the wind howls. And they can feel air brush against their skin when the wind blows on a windy day. Air consists of a mixture of gases. These gases consist of tiny particles called atoms and molecules.
The meaning of AIR is the mixture of invisible odorless tasteless gases (such as nitrogen and oxygen) that surrounds the earth; also : the equivalent mix of gases on another celestial object (such as a planet).
