theme 4 > p:56

(a)
العمود الاول /i/
six - live - river - enough - wind
العمود الثاني /:i/
three - even - sea - tree - green
العمود الثالث /ae/
had - black - happen - fact - have
العمود الرابع /:a/
hard - glass
العمود الخامس /e/
ten - egg - test - weather - yellow
العمود السادس /:e/
third - learn - research - work - world
(b)
1- science is study of how things work in the world
2- a scientist usually works in a laboratory
3- he or she test things to find the fact
(c)
is,things work,know,do.prove,always true,show,damages,thinking,to prove

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