Gases in the Atmosphere Crossword Puzzle

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Gases in the Atmosphere Crossword Puzzle

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QUESTIONS LIST:

  • air : this is a mixture of gases in the atmosphere.
  • nitrogen : gas needed to make protein and makes up 78% of the air.
  • evaporation : when water turns into water vapor.
  • condensation : when water cools and forms clouds.
  • gas : state of matter which moves about freely.
  • argon : makes up 0.93% of the air.
  • precipitation : when water falls to the earth as rain
  • collection : when water is collected in rivers, oceans and lakes.
  • carbon dioxide : gas needed for photosynthesis and makes up 0.04% of the air.
  • oxygen : gas needed for breathing and makes up 21% of the air.
  • water cycle : process that recycles the water in the atmosphere over and over again.