Bone Squad Worksheet
Bone Squad Lab
Grade 3 Science
Investigating the Human Skeleton & Its Superpowers
Name:
Date:
Part 1
Skeleton Blueprint
Match numbers 1–6
1 2 3 4 5 6
Write the bone name next to its number:
1
2
3
4
5
6
Bone Fact: The femur (thigh bone) is the longest and strongest bone in your entire body!
Word Bank 6 Major Bones
Skull Ribs Femur Spine Pelvis Humerus
Part 2
Skeleton Superpowers
Bones have 3 primary jobs: Protect, Support, & Move
Job 1 • Protection (Armor for Organs)
A. Which bone acts like a natural helmet to protect your brain?
Protected by:
B. Your ribs form a strong cage. Name one organ they protect:
Protects the:
Job 2 • Support (Holding You Up)
A. Which bone runs down your back to help you stand straight?
The:
B. What would your body be like if you had NO bones inside?
A floppy blob of jelly A stiff wooden statue
Job 3 • Movement (Teaming Up)
Bones cannot move all by themselves! What stretchy tissues attach to bones and pull them so you can run, jump, and bend?
Bones team up with:
Scientist Bonus Question:
Why do you think our leg bones (like the femur) are thicker and heavier than our arm bones?
Because they hold:
