Six body systems are matched to a main job and an organ pair on this 3-page 5th grade science worksheet. Students draw lines across a three-column table, linking the skeletal system to supporting and protecting the body and to the skull and ribs, and so on through the muscular, circulatory, respiratory, digestive and nervous systems. Part 2 has three written questions on page 2. The answer key is on page 3.
“Match each body system to its main job.”
The job column in Part 1, from supports and protects the body to controls the body and carries messages.
“Name organs that belong to each major body system.”
The organ pair column in Part 1.
“Explain how one organ can belong to two systems.”
Question 1 asks why the heart belongs to both the muscular and circulatory systems.
A table with six body systems numbered 1 to 6, six jobs lettered A to F and six organ pairs marked i to vi. Students link each system to its job and its organs, for example the respiratory system to lungs and trachea.
Three written questions: which organ belongs to both the muscular and circulatory systems and why, which bones protect the lungs, and which system tells the others what to do.
The completed table, then the heart, the ribs and the nervous system as answers to the three questions.
Pencil and a plan
Tell students to start with the jobs they are sure of, such as moves the body, and cross each one off. Lines get messy across three columns, so ask for pencil.
The heart question
Question 1 needs a short talk. The heart shows up in two rows, as heart muscle and as heart and blood vessels, and students have to spot the link.
End of unit
Use page 2 as a short written check after the unit. Question 3 shows quickly whether students can say what the nervous system does in their own words.
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