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Spaces that look empty usually have air in them

full water transparent plastic bottle and crushed one with lid

Empty space at the Earth’s surface might look empty, but it is almost always filled with air. An empty drink bottle can be empty of liquid but full of air. If a plastic bottle is squeezed, the air can be felt against our skin.    

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Glossary

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Published: 5 November 2021Size: 302.62 KB
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