Naming Major Bones · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.
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Naming Major Bones

Science · The Human Body · ages 7-9
Name ______________________   Date ____________

  1. What is the long bone in your upper arm called?

    • The humerus
    • The pelvis
    • The vertebrae

  2. Which bone group protects your brain?

    • The femur
    • The skull
    • The ribcage

  3. Your spine runs down your back.

    Circle one:   True   False

  4. Which answer explains both how Leo's skeleton supports his body and how his leg moves to kick a ball?

    • Bones give his body shape; muscles pull on bones to move his leg.
    • Bones give his body shape; the skull pushes his leg bones to make him kick.
    • Bones protect his organs; the ribcage pushes his leg bones to make him kick.

  5. Which bone group protects your heart and lungs?

    • The pelvis
    • The skull
    • The ribcage

  6. You name the humerus in each upper arm and the femur in each thigh. How many individual bones have you named altogether?

    Answer: ______________

  7. A crab has an exoskeleton outside its body. A human has bones inside. What does this comparison show?

    • Every animal has a skeleton made of bones hidden inside its body.
    • A crab's outer skeleton is made of the same bones as a human skull.
    • Animals do not all have an inside skeleton made of bones.

  8. Mia says, 'My pelvis is a single bone in my thigh.' Which correction matches the lesson?

    • The pelvis is a thigh bone; the femur is a bone group at the hips.
    • The pelvis is a bone group at the hips; the femur is the thigh bone.
    • The pelvis is a bone group at the head; the femur is the upper arm bone.
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Answer key

For grown-ups. Fold this page away before handing over the rest.

Naming Major Bones W1-mt_OMmiuv9ZLH-s1

  1. The humerus · The humerus is the bone between the shoulder and elbow in each upper arm.
  2. The skull · The skull includes the bones that surround and protect your brain.
  3. True · The spine is the bone group that runs down your back. It includes small bones called vertebrae.
  4. Bones give his body shape; muscles pull on bones to move his leg. · Bones support Leo's body by giving it shape. Muscles pull on bones to move his leg for the kick.
  5. The ribcage · The ribcage surrounds the chest and helps protect the heart and lungs inside.
  6. 4 · Two upper arms each have one humerus. Two thighs each have one femur. That makes 2 + 2 = 4 bones.
  7. Animals do not all have an inside skeleton made of bones. · Humans have bones inside. Crabs have exoskeletons outside, so animal body supports are not all the same.
  8. The pelvis is a bone group at the hips; the femur is the thigh bone. · The pelvis is a bone group at the hips. The femur is the individual bone in each thigh.
Worksheet · LightMySky