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Air

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    Air
  •   Study   Slideshow
  • Air is not essential for burning. True or false?
    False
  •  15
  • Air is essential for living organisms. True or false?
    True
  •  15
  • What is the percentage of oxygen in the air?
    21%
  •  15
  • What is the percentage of nitrogen in the air?
    78%
  •  15
  • Air movement causes wind. True or false?
    True
  •  15
  • What is the percentage of other gases in the air?
    1%
  •  15
  • Wind energy is a process of using wind to make electricity. True or false?
    True
  •  15
  • What is it?
    Wind turbines
  •  15
  • 30% of air is oxygen. True or false?
    False
  •  15
  • 98% of air is nitrogen. True or false?
    False
  •  15
  • Sailboats need wind to move. True or false?
    True
  •  15
  • Living organisms need air for respiration. True or false?
    True
  •  15
  • We use wind turbines to make wind. True or false?
    False
  •  15
  • Count to ten and get the points
    1 2 3 4 5 6 7 8 9 10
  •  25
  • Name 3 types of living organisms
    humans, animals, plants
  •  15
  • What does air consist of?
    nitrogen, oxygen, other gases
  •  15