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Gas
Intangible substance![Play](https://cdn-wordup.com/WebsiteImages/DictionaryPics/BlackPlay.svg)
Understand that 'gas' refers to something you can't hold like solids. ![Slide](https://word-images.cdn-wordup.com/tips/ntKL7tmEAvMZ7gmh4LqB3EpuIg.webp)
Invisible but real![Play](https://cdn-wordup.com/WebsiteImages/DictionaryPics/BlackPlay.svg)
Remember gases may be invisible but they can have effects, like oxygen we breathe. ![Slide](https://word-images.cdn-wordup.com/tips/Cf34nwCpQrWmOTH7Lp5MCAw2dE.webp)
Environmental impact![Play](https://cdn-wordup.com/WebsiteImages/DictionaryPics/BlackPlay.svg)
Some gases can contribute to environmental problems like global warming. ![Slide](https://word-images.cdn-wordup.com/tips/WIWbFgYqCIvz0srs3HWoHLfDJn0.webp)