Page 3 - Lesson note
P. 3

Air is a mixture of gases that
                  A      i  r     i  s      a        m        i  x    t   u      r   e       o      f     ga         s    e     s      t   h      a    t






                                  makes up our Earth’s







                                                      atmosphere.
                                                      a     t   m         o     s    p     h     e     r   e     .
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