Where does the frost co100字
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After a cold night,you will find frost on cars,trees,grass -- nearly on everything in the morning. Where does the frost come from?
Frost comes from the water in the air.Air often carries water in the form of water vapor.In this form,water molecules move around in the air. When the air becomes very cold,the molecules will stay together and form frozen water crystals. We all these water crystals . We call these water crystals frost.
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Where does the frost co100字
Afteracoldnight,youwillfindfrostoncars,trees,grass--nearlyoneverythinginthemorni...
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