Tag: Air Part of Earth’s Atmosphere – Grade 4

Experiment to Show Air Pollution

Air pollution is all around us. Air pollution began to attract people’s attention in the 1950’s, when people got sick and died as a result. The minute particles in the air that are not harmful unless inhaled in over long periods of time, are the substances causing the health issues. You can identify air pollution…

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Sources of Air Pollution and Reduction of Harmful Effects

Air pollution consists of chemicals or particles in the air that can harm the health of humans, animals and plants. It can also damage buildings. Air pollutants can take different forms: gases, solid particles or liquid droplets. There are two main sources of air pollution: Natural or Man Made. Natural Sources Dust Storms: storms are…

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Components of Air and How They are Used.

The air contains a number of gases. The more well known gases are: Nitrogen, Carbon Dioxide and last but not least Oxygen which is essential for human survival because we need it to breathe!! Other gases which are not as well known as the three mentioned above are listed below: Neon Methane Helium Krypton Hydrogen…

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Properties of Air

Air takes up space, has matter, exerts pressure, is colourless and is all around us. It may be hard to imagine air as matter as a liquid or a solid because it seems to not have the properties mentioned above. For many years people didn’t think that air existed; but it does! Read these points…

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