The Science Council has “science” in its name but had not previously clarified what this actually meant. Take an empty ziploc bag, open it and pull it through the air like a parachute. Air barriers are systems of materials designed and constructed to control airflow between a conditioned space and an unconditioned space. Students could graph the results of the experiment by setting a ruler beside the pencil and measuring how many centimeters plus or minus the starting point the air pressure has changed during the course of the activity. air synonyms, air pronunciation, air translation, English dictionary definition of air. Upper air definition, the atmosphere above the lower portion of the troposphere. See more. You’ll notice that some things drop faster than others, this is because of air resistance.Try dropping a piece of paper and a lego brick. Atmospheric pressure is the force exerted against a surface by the weight of the air above the surface. ; expose: air grievances; a tune: She hummed an air. Air takes up space. Density is an intensive property of matter, which means the size of a sample does not affect its value.
Air is affected by altitude.

the atmosphere: The air is fresher in the mountains. Air resistance is the force that air exerts on objects moving through it. The definition of air is the mixture of oxygen, nitrogen and other gasses that are consistently present around us.
Air is stuff and has many different properties. Air barriers are systems of materials designed and constructed to control airflow between a conditioned space and an unconditioned space. Wind is moving air and is caused by differences in air pressure within our atmosphere. Modern Air Definition Air is the general name for the mixture of gases that makes up the Earth's atmosphere. YourDictionary definition and usage example.

How to use air in a sentence. Air contains about 78 percent nitrogen and 21 percent oxygen, with the remaining part being made up of argon, carbon dioxide, neon, helium, and other gases. Meaning of air resistance. Air can be compressed. Air exerts pressure. Air is a gas that provides us with oxygen, but oxygen isn't the only element in air. Information and translations of air resistance in the most comprehensive dictionary definitions resource on the web.

An air conditioner (AC or air-con) is an appliance or mechanism designed to extract heat from an area using a refrigeration cycle. Define air. Air has mass/weight. The greater the difference in pressure, the faster the air flows. A cool breeze is an example of air. High concentrations can cause undesirable health, economic, or aesthetic effects. The Science Council has “science” in its name but had not previously clarified what this actually meant. Air definition, a mixture of nitrogen, oxygen, and minute amounts of other gases that surrounds the earth and forms its atmosphere. Air pollution, release into the atmosphere of various gases, finely divided solids, or finely dispersed liquid aerosols at rates that exceed the natural capacity of the environment to dissipate and dilute or absorb them. air navigation, science and technology of determining the position of an aircraft with respect to the surface of the earth and accurately maintaining a desired course (see navigation navigation, science and technology of finding the position and directing the course of vessels and aircraft. Back to Science.

Define air mass. The air barrier system is the primary air enclosure boundary that separates indoor (conditioned) air and outdoor (unconditioned) air. In our science of summer series, LiveScience looks at how air conditioners work to keep you cool, including the history and chemistry of your home's A/C. Air Takes Up Space.

Current applications using compressed air are numerous and diverse, including jackhammers, tire pumps, air rifles, and aerosol cheese.