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Clever bone

Check whether the minerals give bones strength.

Material:

- glass,

- vinegar,

- chicken bone.

Instruction:

 

Pour vinegar into the glass,

next put the bone there for 4 day.

Explanation:

Bones are the body's scaffolding, mineral storage, protect the many gentle, soft organs such as the brain and lungs from mechanical injury. Therefore, they must be strong and are strong.

Keeping the bone in a solution of acetic acid causes loss of stiffness, the bones become soft. Acetic acid is removed from the bone mineral (calcium and phosphorus), which impart stiffness and hardness of the bone.