Lesson Worksheet: The Human Skeleton Science

In this worksheet, we will practice recognizing the parts of the human skeleton and their functions and identifying that not all animals have skeletons.


Pick one way to keep our bones strong and healthy.

  • AEat lots of foods containing calcium.
  • BEat lots of foods containing vitamin C.
  • CEat lots of foods containing sugar.


The skeleton has three main functions (jobs). It gives our bodies shape and protects our organs. Which of these is the third function of the skeleton?

  • AIt helps us move.
  • BIt helps us run fast.
  • CIt maintains our body temperature.


What attaches our muscles to our bones?

  • ATendons
  • BSkin
  • CJoints


What is the longest bone in the human body?

  • AThe tibia
  • BThe radius
  • CThe humerus
  • DThe femur


What joint is shown in the X-ray?

Shoulder x-ray
  • AShoulder
  • BElbow
  • CWrist
  • DKnee


This is a human skeleton.

What bone(s) does the label show?

  • ARibs
  • BFemur
  • CHips
  • DKnee

What organ(s) do these bones protect?

  • AThe lungs
  • BThe kidneys
  • CThe brain
  • DThe heart


Select the correct bone to complete the label.

Which bone does the label show?

  • AThe ribs
  • BThe hips
  • CThe skull
  • DThe shoulders

Which organ does this bone protect?

  • AThe lungs
  • BThe brain
  • CThe heart
  • DThe liver


This is a human skeleton.

What is the name of the bone that completes the label?

  • AFibula
  • BFemur
  • CKnee
  • DTibia

This bone helps support our body weight. It has another important job. What is it?

  • AIt helps us balance.
  • BIt helps us stand and walk.
  • CIt helps us turn our head.
  • DIt helps us write.


Which joint is shown in the X-ray?

X-ray picture showing knee joints
  • AThe wrist
  • BThe shoulder
  • CThe hip
  • DThe knee


The diagram shows the different types of joints we have in our bodies. Which type of joint is the shoulder?

  • AHinged
  • BBall and socket
  • CImmovable

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