Page 38 - E-Science Prim.3 2024-2025 1st term part 1 _Neat
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4-The heart beat and push blood through your body to
deliver nutrients and oxygen to all body parts.
5-The heart is divided into 2 sides.
6-The heart automatically contracts and expand to beat.
7-The heart expands when it's filled with blood.
8-The heart contracts when pushing blood.
9-Laughing is good for your heart.
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