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Elaborate: Ask students the following questions: How will we know if we missed any bones when we counted? What could we use to help us find out more about bones? Discuss other ways of counting bones such as books, x-rays, or a model skeleton. Students could choose to use other resources to see if they can get a more accurate total.

Evaluate: Have student pick a bone in their body and think about how that one bone impacts the

ability to play basketball. Then write a paragraph about this in their science notebooks.

Answers:

How Many Bones?

  • Skull and upper jaw 21 bones

  • 3 tiny bones in each ear

  • Lower jaw (mandible)

  • Front neck bone (hyoid)

  • Backbone or spine (26 separate bones or vertebrae)

  • Ribs (12 pairs - same number for men and women)

  • Breastbone

  • Each upper limb has 32 bones: 2 in shoulder, 3 in arm, 8 in wrist, 19 in hand and fingers.

  • Each lower limb has 31 bones: 1 in hip (one side of pelvis), 4 in leg, 7 in ankle, 19 in foot and toes.

Total = 206 bones

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