Page 6 - E book prim 4
P. 6
Delta Modern Language Schools
Science department
Grade 4
1st term 2024-2025
Digestive system in human (organs)
Mouth Throat(Pharynx) Esophagus Stomach Small intestine Large intestine
Respiratory system in human
Nose Throat Trachea Two Lungs Diaphragm
Diaphragm Inhalation Exhalation
Air
Moves downward Moves upward
Rich in O2 Rich in CO2
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